Revision Notes for Class 10 Science. Try first, then reveal the answer. These are exam-oriented practice items, not copied board papers.
Practice questions aligned to NCERT topics used in CBSE classrooms. These are original exam-oriented questions for revision — not official CBSE board papers and not a guarantee of any exam question. Always match the textbook issued by your school and the latest PDFs on ncert.nic.in and cbseacademic.nic.in.
Answers opened: 0
Practice set
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Balanced equation in the chapter Chemical Reactions and Equations.
A. An exothermic reaction releases heat to the surroundings
B. A decomposition reaction splits one compound into two or more products, often with heat, light or electricity
C. Mass need not be conserved
D. A balanced chemical equation has the same number of atoms of each element on both sides
Answer
D. A balanced chemical equation has the same number of atoms of each element on both sides
Explanation
A balanced chemical equation has the same number of atoms of each element on both sides. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Chemical Reactions and Equations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Combination reaction in the chapter Chemical Reactions and Equations.
A. In a combination reaction two or more substances join to form a single product
B. A more reactive metal can displace a less reactive metal from its salt solution
C. An endothermic reaction absorbs heat from the surroundings
D. Combination, decomposition, displacement, double displacement
Answer
A. In a combination reaction two or more substances join to form a single product
Explanation
In a combination reaction two or more substances join to form a single product. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Chemical Reactions and Equations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Decomposition in the chapter Chemical Reactions and Equations.
A. A precipitate is an insoluble solid formed in a double-displacement reaction
B. A decomposition reaction splits one compound into two or more products, often with heat, light or electricity
C. Oxidation and reduction occur together in a redox reaction
D. Redox: oxidation is gain of oxygen or loss of electrons as taught
Answer
B. A decomposition reaction splits one compound into two or more products, often with heat, light or electricity
Explanation
A decomposition reaction splits one compound into two or more products, often with heat, light or electricity. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Chemical Reactions and Equations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Displacement in the chapter Chemical Reactions and Equations.
A. A more reactive metal can displace a less reactive metal from its salt solution
B. An exothermic reaction releases heat to the surroundings
C. Exothermic vs endothermic
D. A chemical equation must be balanced for mass
Answer
A. A more reactive metal can displace a less reactive metal from its salt solution
Explanation
A more reactive metal can displace a less reactive metal from its salt solution. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Chemical Reactions and Equations · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Acids, Bases and Salts in the chapter Acids, Bases and Salts.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. pH < 7 acidic; 7 neutral; > 7 basic
C. Acids, Bases and Salts is an NCERT chapter taught in CBSE Class 10 Science
D. Acids produce H+ in water
Answer
D. Acids produce H+ in water
Explanation
Acids produce H+ in water. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Acids, Bases and Salts · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Acids, Bases and Salts in the chapter Acids, Bases and Salts.
A. Strong acid: HCl; weak: CH3COOH as examples
B. Bases produce OH−
C. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer
B. Bases produce OH−
Explanation
Bases produce OH−. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Acids, Bases and Salts · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Acids, Bases and Salts in the chapter Acids, Bases and Salts.
A. Write three points from Acids, Bases and Salts in your own words; that is enough for a short-answer start
B. pH < 7 acidic; 7 neutral; > 7 basic
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Washing soda, baking soda, plaster of Paris, bleaching powder uses
Answer
B. pH < 7 acidic; 7 neutral; > 7 basic
Explanation
pH < 7 acidic; 7 neutral; > 7 basic. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Acids, Bases and Salts · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Strong acid in the chapter Acids, Bases and Salts.
A. Use the terms used in the NCERT book; do not replace them with unofficial names
B. Strong acid: HCl; weak: CH3COOH as examples
C. Acids, Bases and Salts is an NCERT chapter taught in CBSE Class 10 Science
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
B. Strong acid: HCl; weak: CH3COOH as examples
Explanation
Strong acid: HCl; weak: CH3COOH as examples. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Acids, Bases and Salts · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Metals and Non-metals in the chapter Metals and Non-metals.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Metals form basic oxides; non-metals acidic or neutral
C. Ionic compounds: high melting point, conduct in molten/aqueous state
D. Metals and Non-metals is an NCERT chapter taught in CBSE Class 10 Science
Answer
B. Metals form basic oxides; non-metals acidic or neutral
Explanation
Metals form basic oxides; non-metals acidic or neutral. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Metals and Non-metals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Metals and Non-metals in the chapter Metals and Non-metals.
A. Aqua regia dissolves gold — as in the chapter
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Reactivity series
Answer
D. Reactivity series
Explanation
Reactivity series. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Metals and Non-metals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Ionic compounds in the chapter Metals and Non-metals.
A. Every chapter ends with keywords or a summary that is useful for one-mark answers
B. Write three points from Metals and Non-metals in your own words; that is enough for a short-answer start
C. Corrosion of iron is rusting
D. Ionic compounds: high melting point, conduct in molten/aqueous state
Answer
D. Ionic compounds: high melting point, conduct in molten/aqueous state
Explanation
Ionic compounds: high melting point, conduct in molten/aqueous state. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Metals and Non-metals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Metals and Non-metals in the chapter Metals and Non-metals.
A. Metals and Non-metals is an NCERT chapter taught in CBSE Class 10 Science
B. Use the terms used in the NCERT book; do not replace them with unofficial names
C. Aqua regia dissolves gold — as in the chapter
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. Aqua regia dissolves gold — as in the chapter
Explanation
Aqua regia dissolves gold — as in the chapter. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Metals and Non-metals · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Carbon and its Compounds in the chapter Carbon and its Compounds.
A. Carbon and its Compounds is an NCERT chapter taught in CBSE Class 10 Science
B. CBSE often tests a concept by asking a daily-life example from the same chapter
C. Homologous series differ by CH2
D. Carbon forms four covalent bonds
Answer
D. Carbon forms four covalent bonds
Explanation
Carbon forms four covalent bonds. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Carbon and its Compounds · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Carbon and its Compounds in the chapter Carbon and its Compounds.
A. Saturated: single bonds; unsaturated: double/triple
B. Catenation
C. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer
B. Catenation
Explanation
Catenation. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Carbon and its Compounds · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Carbon and its Compounds in the chapter Carbon and its Compounds.
A. Homologous series differ by CH2
B. Soaps are sodium salts of fatty acids; detergents as in remaining text
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Write three points from Carbon and its Compounds in your own words; that is enough for a short-answer start
Answer
A. Homologous series differ by CH2
Explanation
Homologous series differ by CH2. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Carbon and its Compounds · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Saturated in the chapter Carbon and its Compounds.
A. Use the terms used in the NCERT book; do not replace them with unofficial names
B. Saturated: single bonds; unsaturated: double/triple
C. CBSE often tests a concept by asking a daily-life example from the same chapter
D. Carbon and its Compounds is an NCERT chapter taught in CBSE Class 10 Science
Answer
B. Saturated: single bonds; unsaturated: double/triple
Explanation
Saturated: single bonds; unsaturated: double/triple. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Carbon and its Compounds · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Photosynthesis in the chapter Life Processes.
A. The nephron is the structural and functional unit of the kidney
B. Green plants make food from carbon dioxide and water in sunlight using chlorophyll, releasing oxygen
C. Autotrophic nutrition: photosynthesis
D. The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart
Answer
B. Green plants make food from carbon dioxide and water in sunlight using chlorophyll, releasing oxygen
Explanation
Green plants make food from carbon dioxide and water in sunlight using chlorophyll, releasing oxygen. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Aerobic respiration in the chapter Life Processes.
A. Alveoli provide a large surface for exchange of oxygen and carbon dioxide
B. Aerobic respiration releases more energy than anaerobic
C. Xylem transports water and minerals from roots to other parts of the plant
D. Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration
Answer
D. Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration
Explanation
Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Human heart in the chapter Life Processes.
A. Peristalsis is the wave-like movement of the alimentary canal that pushes food
B. The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart
C. Phloem transports food from leaves to other parts of the plant
D. Human heart: four chambers
Answer
B. The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart
Explanation
The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Xylem in the chapter Life Processes.
A. Xylem transports water and minerals from roots to other parts of the plant
B. The nephron is the structural and functional unit of the kidney
C. Xylem water; phloem food
D. Autotrophic nutrition: photosynthesis
Answer
A. Xylem transports water and minerals from roots to other parts of the plant
Explanation
Xylem transports water and minerals from roots to other parts of the plant. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Life Processes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Neuron in the chapter Control and Coordination.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Control and Coordination is an NCERT chapter taught in CBSE Class 10 Science
C. Neuron: dendrite, axon, synapse
D. Brain parts in outline
Answer
C. Neuron: dendrite, axon, synapse
Explanation
Neuron: dendrite, axon, synapse. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Control and Coordination · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Control and Coordination in the chapter Control and Coordination.
A. Auxin and tropism
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Reflex arc
Answer
D. Reflex arc
Explanation
Reflex arc. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Control and Coordination · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Control and Coordination in the chapter Control and Coordination.
A. Adrenaline for emergency
B. Write three points from Control and Coordination in your own words; that is enough for a short-answer start
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Brain parts in outline
Answer
D. Brain parts in outline
Explanation
Brain parts in outline. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Control and Coordination · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Control and Coordination in the chapter Control and Coordination.
A. Auxin and tropism
B. Use the terms used in the NCERT book; do not replace them with unofficial names
C. Control and Coordination is an NCERT chapter taught in CBSE Class 10 Science
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
A. Auxin and tropism
Explanation
Auxin and tropism. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Control and Coordination · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Asexual in the chapter How do Organisms Reproduce?.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Flower: stamen and pistil
C. How do Organisms Reproduce? is an NCERT chapter taught in CBSE Class 10 Science
D. Asexual: fission, budding, fragmentation, spore, vegetative
Answer
D. Asexual: fission, budding, fragmentation, spore, vegetative
Explanation
Asexual: fission, budding, fragmentation, spore, vegetative. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: How do Organisms Reproduce? · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to How do Organisms Reproduce? in the chapter How do Organisms Reproduce?.
A. Fertilisation
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Sexual involves gametes
Answer
D. Sexual involves gametes
Explanation
Sexual involves gametes. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: How do Organisms Reproduce? · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Flower in the chapter How do Organisms Reproduce?.
A. Flower: stamen and pistil
B. Every chapter ends with keywords or a summary that is useful for one-mark answers
C. Write three points from How do Organisms Reproduce? in your own words; that is enough for a short-answer start
D. Reproductive health as in the chapter
Answer
A. Flower: stamen and pistil
Explanation
Flower: stamen and pistil. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: How do Organisms Reproduce? · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to How do Organisms Reproduce? in the chapter How do Organisms Reproduce?.
A. How do Organisms Reproduce? is an NCERT chapter taught in CBSE Class 10 Science
B. Use the terms used in the NCERT book; do not replace them with unofficial names
C. Fertilisation
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. Fertilisation
Explanation
Fertilisation. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: How do Organisms Reproduce? · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Mendel’s monohybrid 3 in the chapter Heredity.
A. Heredity is an NCERT chapter taught in CBSE Class 10 Science
B. CBSE often tests a concept by asking a daily-life example from the same chapter
C. Mendel’s monohybrid 3:1 in F2
D. Genes are located on chromosomes as taught
Answer
C. Mendel’s monohybrid 3:1 in F2
Explanation
Mendel’s monohybrid 3:1 in F2. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Heredity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Heredity in the chapter Heredity.
A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
B. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
C. Dominant and recessive
D. Human sex: XX female, XY male
Answer
C. Dominant and recessive
Explanation
Dominant and recessive. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Heredity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Heredity in the chapter Heredity.
A. Acquired traits are not passed genetically in Mendelian sense
B. Write three points from Heredity in your own words; that is enough for a short-answer start
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Genes are located on chromosomes as taught
Answer
D. Genes are located on chromosomes as taught
Explanation
Genes are located on chromosomes as taught. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Heredity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Human sex in the chapter Heredity.
A. Human sex: XX female, XY male
B. Use the terms used in the NCERT book; do not replace them with unofficial names
C. Heredity is an NCERT chapter taught in CBSE Class 10 Science
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
A. Human sex: XX female, XY male
Explanation
Human sex: XX female, XY male. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Heredity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Light – Reflection and Refraction in the chapter Light – Reflection and Refraction.
A. Light – Reflection and Refraction is an NCERT chapter taught in CBSE Class 10 Science
B. CBSE often tests a concept by asking a daily-life example from the same chapter
C. Laws of reflection
D. m = h′/h = −v/u
Answer
C. Laws of reflection
Explanation
Laws of reflection. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Light – Reflection and Refraction · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Light – Reflection and Refraction in the chapter Light – Reflection and Refraction.
A. Mirror formula 1/v + 1/u = 1/f
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Refraction: Snell’s law n = sin i / sin r
Answer
A. Mirror formula 1/v + 1/u = 1/f
Explanation
Mirror formula 1/v + 1/u = 1/f. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Light – Reflection and Refraction · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Light – Reflection and Refraction in the chapter Light – Reflection and Refraction.
A. Write three points from Light – Reflection and Refraction in your own words; that is enough for a short-answer start
B. Every chapter ends with keywords or a summary that is useful for one-mark answers
C. Lens formula 1/v − 1/u = 1/f
D. m = h′/h = −v/u
Answer
D. m = h′/h = −v/u
Explanation
m = h′/h = −v/u. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Light – Reflection and Refraction · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Refraction in the chapter Light – Reflection and Refraction.
A. Use the terms used in the NCERT book; do not replace them with unofficial names
B. Light – Reflection and Refraction is an NCERT chapter taught in CBSE Class 10 Science
C. Refraction: Snell’s law n = sin i / sin r
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. Refraction: Snell’s law n = sin i / sin r
Explanation
Refraction: Snell’s law n = sin i / sin r. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Light – Reflection and Refraction · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to The Human Eye and the Colourful World in the chapter The Human Eye and the Colourful World.
A. Hypermetropia: converging lens
B. CBSE often tests a concept by asking a daily-life example from the same chapter
C. Retina has rods and cones
D. The Human Eye and the Colourful World is an NCERT chapter taught in CBSE Class 10 Science
Answer
C. Retina has rods and cones
Explanation
Retina has rods and cones. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: The Human Eye and the Colourful World · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Myopia in the chapter The Human Eye and the Colourful World.
A. Dispersion by a prism
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Myopia: diverging lens
Answer
D. Myopia: diverging lens
Explanation
Myopia: diverging lens. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: The Human Eye and the Colourful World · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Hypermetropia in the chapter The Human Eye and the Colourful World.
A. Write three points from The Human Eye and the Colourful World in your own words; that is enough for a short-answer start
B. Every chapter ends with keywords or a summary that is useful for one-mark answers
C. Blue sky: scattering of light
D. Hypermetropia: converging lens
Answer
D. Hypermetropia: converging lens
Explanation
Hypermetropia: converging lens. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: The Human Eye and the Colourful World · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to The Human Eye and the Colourful World in the chapter The Human Eye and the Colourful World.
A. The Human Eye and the Colourful World is an NCERT chapter taught in CBSE Class 10 Science
B. Use the terms used in the NCERT book; do not replace them with unofficial names
C. Dispersion by a prism
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. Dispersion by a prism
Explanation
Dispersion by a prism. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: The Human Eye and the Colourful World · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Electric current in the chapter Electricity.
A. Resistance of a conductor R = ρl/A
B. I = Q/t
C. Electric power P = VI = I²R = V²/R
D. Electric current is the rate of flow of charge, I = Q/t, and its SI unit is ampere
Answer
D. Electric current is the rate of flow of charge, I = Q/t, and its SI unit is ampere
Explanation
Electric current is the rate of flow of charge, I = Q/t, and its SI unit is ampere. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Ohm’s law in the chapter Electricity.
A. V = IR (Ohm’s law, temperature constant)
B. In series, the same current flows and total resistance is the sum of resistances
C. One kilowatt-hour is the energy used by 1 kW in 1 hour, equal to 3.6 × 10⁶ J
D. Ohm’s law: V = IR when physical conditions such as temperature stay constant
Answer
D. Ohm’s law: V = IR when physical conditions such as temperature stay constant
Explanation
Ohm’s law: V = IR when physical conditions such as temperature stay constant. The other options mix ideas from nearby topics or reverse the textbook fact.
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Class: Class 10 · Subject: Science · Chapter: Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Resistance in the chapter Electricity.
A. Resistance of a conductor R = ρl/A
B. In parallel, voltage is the same and 1/Rp = 1/R1 + 1/R2 + …
C. Potential difference is work done per unit charge, V = W/Q, SI unit volt
D. Series: R = R1+R2
Answer
A. Resistance of a conductor R = ρl/A
Explanation
Resistance of a conductor R = ρl/A. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Series combination in the chapter Electricity.
A. Parallel: 1/R = 1/R1+1/R2
B. I = Q/t
C. Electric power P = VI = I²R = V²/R
D. In series, the same current flows and total resistance is the sum of resistances
Answer
D. In series, the same current flows and total resistance is the sum of resistances
Explanation
In series, the same current flows and total resistance is the sum of resistances. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Electricity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Magnetic Effects of Electric Current in the chapter Magnetic Effects of Electric Current.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Magnetic Effects of Electric Current is an NCERT chapter taught in CBSE Class 10 Science
C. A current-carrying conductor has a magnetic field
D. Fleming’s left-hand rule for motors
Answer
C. A current-carrying conductor has a magnetic field
Explanation
A current-carrying conductor has a magnetic field. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Magnetic Effects of Electric Current · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Magnetic Effects of Electric Current in the chapter Magnetic Effects of Electric Current.
A. Electromagnetic induction (qualitative as in chapter)
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Right-hand thumb rule
Answer
D. Right-hand thumb rule
Explanation
Right-hand thumb rule. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Magnetic Effects of Electric Current · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Magnetic Effects of Electric Current in the chapter Magnetic Effects of Electric Current.
A. Live, neutral, earth in domestic wiring
B. Fleming’s left-hand rule for motors
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Write three points from Magnetic Effects of Electric Current in your own words; that is enough for a short-answer start
Answer
B. Fleming’s left-hand rule for motors
Explanation
Fleming’s left-hand rule for motors. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Magnetic Effects of Electric Current · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Magnetic Effects of Electric Current in the chapter Magnetic Effects of Electric Current.
A. Magnetic Effects of Electric Current is an NCERT chapter taught in CBSE Class 10 Science
B. Electromagnetic induction (qualitative as in chapter)
C. Use the terms used in the NCERT book; do not replace them with unofficial names
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
B. Electromagnetic induction (qualitative as in chapter)
Explanation
Electromagnetic induction (qualitative as in chapter). The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 10 · Subject: Science · Chapter: Magnetic Effects of Electric Current · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
FAQs
Are these official CBSE board questions?
No. They are original practice questions aligned to NCERT topics used in CBSE classrooms. Official sample papers are published on cbseacademic.nic.in.
Will these questions appear in the board exam?
Nobody can promise a question. Use them for revision of frequently tested concepts and exam-style practice.
Is the chapter list the latest NCERT list?
Yes, the catalog follows current NCERT textbooks used in CBSE schools (including new middle-stage books such as Ganita Prakash and Curiosity). Always match the book issued by your school.
Where are NCERT solutions?
Open the NCERT-style practice link on this subject or chapter. For word-for-word textbook exercise answers, use the NCERT book itself; we do not copy solution keys from other websites.
What is the suggested URL pattern?
Hub /cbse/, then /cbse/class-10/, then subject and chapter slugs.
Why is this a separate URL?
So students searching for “Revision Notes” land on a filtered set, while the chapter page remains the full 100-question bank. Same facts, different search intent.
Today's 3-step path
Follow this loop every day: mixed test, current affairs, then today's subject. A new set arrives tomorrow.
