Most Important Questions 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).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to Redox in the chapter Chemical Reactions and Equations.
A. Combination, decomposition, displacement, double displacement
B. Precipitation reactions
C. Oxidation and reduction occur together in a redox reaction
D. An endothermic reaction absorbs heat from the surroundings
Answer
C. Oxidation and reduction occur together in a redox reaction
Explanation
Oxidation and reduction occur together in a redox reaction. 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).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Chemical Reactions and Equations in the chapter Chemical Reactions and Equations.
A. A chemical equation must be balanced for mass
B. A balanced chemical equation has the same number of atoms of each element on both sides
C. Redox: oxidation is gain of oxygen or loss of electrons as taught
D. This idea is not part of the NCERT chapter
Answer
A. A chemical equation must be balanced for mass
Explanation
A chemical equation must be balanced for mass. 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).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Chemical Reactions and Equations in the chapter Chemical Reactions and Equations.
A. In a combination reaction two or more substances join to form a single product
B. The textbook says the opposite of this statement
C. Oxidation and reduction occur together in a redox reaction
D. Precipitation reactions
Answer
D. Precipitation reactions
Explanation
Precipitation reactions. 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).
Q17MCQ1 markEasyRevision pick
Choose the correct statement related to Displacement in the chapter Chemical Reactions and Equations.
A. A decomposition reaction splits one compound into two or more products, often with heat, light or electricity
B. A more reactive metal can displace a less reactive metal from its salt solution
C. Combination, decomposition, displacement, double displacement
D. An endothermic reaction absorbs heat from the surroundings
Answer
B. 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).
Q413 Mark3 marksModerateRevision pick
Explain Combination reaction in about three points, with one example.
Answer
In a combination reaction two or more substances join to form a single product. Example: CaO + H2O → Ca(OH)2
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
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).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to Acids, Bases and Salts in the chapter Acids, Bases and Salts.
A. Mix MCQs with short answers so you remember both facts and explanations from Acids, Bases and Salts
B. Washing soda, baking soda, plaster of Paris, bleaching powder uses
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. Washing soda, baking soda, plaster of Paris, bleaching powder uses
Explanation
Washing soda, baking soda, plaster of Paris, bleaching powder uses. 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).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Examples 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. This idea is not part of the NCERT chapter
C. Acids produce H+ in water
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Explanation
CBSE often tests a concept by asking a daily-life example from the same chapter. 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).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Practice in the chapter Acids, Bases and Salts.
A. The textbook says the opposite of this statement
B. Mix MCQs with short answers so you remember both facts and explanations from Acids, Bases and Salts
C. Washing soda, baking soda, plaster of Paris, bleaching powder uses
D. Bases produce OH−
Answer
B. Mix MCQs with short answers so you remember both facts and explanations from Acids, Bases and Salts
Explanation
Mix MCQs with short answers so you remember both facts and explanations from Acids, Bases and Salts. 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).
Q17MCQ1 markEasyRevision pick
Choose the correct statement related to Strong acid in the chapter Acids, Bases and Salts.
A. Strong acid: HCl; weak: CH3COOH as examples
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. pH < 7 acidic; 7 neutral; > 7 basic
Answer
A. 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).
Q413 Mark3 marksModerateRevision pick
Explain Acids, Bases and Salts in about three points, with one example.
Answer
Bases produce OH−. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
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).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to Metals and Non-metals in the chapter Metals and Non-metals.
A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
B. Corrosion of iron is rusting
C. Mix MCQs with short answers so you remember both facts and explanations from Metals and Non-metals
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer
B. Corrosion of iron is rusting
Explanation
Corrosion of iron is rusting. 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).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Examples in the chapter Metals and Non-metals.
A. Write three points from Metals and Non-metals in your own words; that is enough for a short-answer start
B. Metals form basic oxides; non-metals acidic or neutral
C. This idea is not part of the NCERT chapter
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Explanation
CBSE often tests a concept by asking a daily-life example from the same 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).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Practice in the chapter Metals and Non-metals.
A. Reactivity series
B. The textbook says the opposite of this statement
C. Corrosion of iron is rusting
D. Mix MCQs with short answers so you remember both facts and explanations from Metals and Non-metals
Answer
D. Mix MCQs with short answers so you remember both facts and explanations from Metals and Non-metals
Explanation
Mix MCQs with short answers so you remember both facts and explanations from Metals and Non-metals. 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).
Q17MCQ1 markEasyRevision pick
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. Ionic compounds: high melting point, conduct in molten/aqueous state
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
A. 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).
Q413 Mark3 marksModerateRevision pick
Explain Metals and Non-metals in about three points, with one example.
Answer
Reactivity series. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
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).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to Carbon and its Compounds in the chapter Carbon and its Compounds.
A. Mix MCQs with short answers so you remember both facts and explanations from Carbon and its Compounds
B. Soaps are sodium salts of fatty acids; detergents as in remaining text
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. Soaps are sodium salts of fatty acids; detergents as in remaining text
Explanation
Soaps are sodium salts of fatty acids; detergents as in remaining text. 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).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Examples in the chapter Carbon and its Compounds.
A. Carbon forms four covalent bonds
B. Write three points from Carbon and its Compounds in your own words; that is enough for a short-answer start
C. This idea is not part of the NCERT chapter
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Explanation
CBSE often tests a concept by asking a daily-life example from the same chapter. 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).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Practice in the chapter Carbon and its Compounds.
A. Soaps are sodium salts of fatty acids; detergents as in remaining text
B. The textbook says the opposite of this statement
C. Mix MCQs with short answers so you remember both facts and explanations from Carbon and its Compounds
D. Catenation
Answer
C. Mix MCQs with short answers so you remember both facts and explanations from Carbon and its Compounds
Explanation
Mix MCQs with short answers so you remember both facts and explanations from Carbon and its Compounds. 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).
Q17MCQ1 markEasyRevision pick
Choose the correct statement related to Saturated in the chapter Carbon and its Compounds.
A. Homologous series differ by CH2
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. Saturated: single bonds; unsaturated: double/triple
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer
C. 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).
Q413 Mark3 marksModerateRevision pick
Explain Carbon and its Compounds in about three points, with one example.
Answer
Catenation. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
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).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to Phloem in the chapter Life Processes.
A. Phloem transports food from leaves to other parts of the plant
B. Nephron is the unit of kidney
C. Alveoli provide a large surface for exchange of oxygen and carbon dioxide
D. Aerobic respiration releases more energy than anaerobic
Answer
A. Phloem transports food from leaves to other parts of the plant
Explanation
Phloem transports food from leaves 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).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Autotrophic nutrition in the chapter Life Processes.
A. Autotrophic nutrition: photosynthesis
B. This idea is not part of the NCERT chapter
C. Green plants make food from carbon dioxide and water in sunlight using chlorophyll, releasing oxygen
D. Human heart: four chambers
Answer
A. Autotrophic nutrition: photosynthesis
Explanation
Autotrophic nutrition: photosynthesis. 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).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Life Processes in the chapter Life Processes.
A. Nephron is the unit of kidney
B. The textbook says the opposite of this statement
C. Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration
D. Phloem transports food from leaves to other parts of the plant
Answer
A. Nephron is the unit of kidney
Explanation
Nephron is the unit of kidney. 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).
Q17MCQ1 markEasyRevision pick
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. Alveoli provide a large surface for exchange of oxygen and carbon dioxide
C. Aerobic respiration releases more energy than anaerobic
D. The human heart has four chambers and keeps oxygenated and deoxygenated blood from mixing in a healthy heart
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).
Q413 Mark3 marksModerateRevision pick
Explain Aerobic respiration in about three points, with one example.
Answer
Aerobic respiration uses oxygen and releases much more energy than anaerobic respiration. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
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).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to Control and Coordination in the chapter Control and Coordination.
A. Adrenaline for emergency
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. Mix MCQs with short answers so you remember both facts and explanations from Control and Coordination
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer
A. Adrenaline for emergency
Explanation
Adrenaline for emergency. 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).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Examples in the chapter Control and Coordination.
A. This idea is not part of the NCERT chapter
B. Neuron: dendrite, axon, synapse
C. Write three points from Control and Coordination in your own words; that is enough for a short-answer start
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Explanation
CBSE often tests a concept by asking a daily-life example from the same chapter. 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).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Practice in the chapter Control and Coordination.
A. Reflex arc
B. The textbook says the opposite of this statement
C. Mix MCQs with short answers so you remember both facts and explanations from Control and Coordination
D. Adrenaline for emergency
Answer
C. Mix MCQs with short answers so you remember both facts and explanations from Control and Coordination
Explanation
Mix MCQs with short answers so you remember both facts and explanations from Control and Coordination. 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).
Q17MCQ1 markEasyRevision pick
Choose the correct statement related to Control and Coordination in the chapter Control and Coordination.
A. Brain parts in outline
B. Auxin and tropism
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. 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).
Q413 Mark3 marksModerateRevision pick
Explain Control and Coordination in about three points, with one example.
Answer
Reflex arc. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
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).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to How do Organisms Reproduce? in the chapter How do Organisms Reproduce?.
A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
B. Mix MCQs with short answers so you remember both facts and explanations from How do Organisms Reproduce?
C. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
D. Reproductive health as in the chapter
Answer
D. Reproductive health as in the chapter
Explanation
Reproductive health as in the chapter. 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).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Examples in the chapter How do Organisms Reproduce?.
A. This idea is not part of the NCERT chapter
B. Write three points from How do Organisms Reproduce? in your own words; that is enough for a short-answer start
C. Asexual: fission, budding, fragmentation, spore, vegetative
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Explanation
CBSE often tests a concept by asking a daily-life example from the same chapter. 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).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Practice in the chapter How do Organisms Reproduce?.
A. The textbook says the opposite of this statement
B. Sexual involves gametes
C. Reproductive health as in the chapter
D. Mix MCQs with short answers so you remember both facts and explanations from How do Organisms Reproduce?
Answer
D. Mix MCQs with short answers so you remember both facts and explanations from How do Organisms Reproduce?
Explanation
Mix MCQs with short answers so you remember both facts and explanations from How do Organisms Reproduce?. 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).
Q17MCQ1 markEasyRevision pick
Choose the correct statement related to How do Organisms Reproduce? in the chapter How do Organisms Reproduce?.
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. Fertilisation
D. Flower: stamen and pistil
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).
Q413 Mark3 marksModerateRevision pick
Explain How do Organisms Reproduce? in about three points, with one example.
Answer
Sexual involves gametes. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
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).
Q5MCQ1 markModerateRevision pick
Choose the correct statement related to Heredity in the chapter Heredity.
A. Mix MCQs with short answers so you remember both facts and explanations from Heredity
B. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
C. Acquired traits are not passed genetically in Mendelian sense
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer
C. Acquired traits are not passed genetically in Mendelian sense
Explanation
Acquired traits are not passed genetically in Mendelian sense. The other options mix ideas from nearby topics or reverse the textbook fact.
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Class: Class 10 · Subject: Science · Chapter: Heredity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q9MCQ1 markEasyRevision pick
Choose the correct statement related to Examples in the chapter Heredity.
A. This idea is not part of the NCERT chapter
B. Mendel’s monohybrid 3:1 in F2
C. CBSE often tests a concept by asking a daily-life example from the same chapter
D. Write three points from Heredity in your own words; that is enough for a short-answer start
Answer
C. CBSE often tests a concept by asking a daily-life example from the same chapter
Explanation
CBSE often tests a concept by asking a daily-life example from the same chapter. The other options mix ideas from nearby topics or reverse the textbook fact.
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Class: Class 10 · Subject: Science · Chapter: Heredity · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q13MCQ1 markEasyRevision pick
Choose the correct statement related to Practice in the chapter Heredity.
A. Acquired traits are not passed genetically in Mendelian sense
B. The textbook says the opposite of this statement
C. Dominant and recessive
D. Mix MCQs with short answers so you remember both facts and explanations from Heredity
Answer
D. Mix MCQs with short answers so you remember both facts and explanations from Heredity
Explanation
Mix MCQs with short answers so you remember both facts and explanations from Heredity. 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).
Q17MCQ1 markEasyRevision pick
Choose the correct statement related to Human sex in the chapter Heredity.
A. Read the definitions, diagrams and solved examples in the NCERT textbook before practising extra questions
B. Genes are located on chromosomes as taught
C. Human sex: XX female, XY male
D. If the chapter has a diagram, practise labelling it — many school tests ask for labelled figures
Answer
C. 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).
Q413 Mark3 marksModerateRevision pick
Explain Heredity in about three points, with one example.
Answer
Dominant and recessive. Example: Use a situation from the NCERT activity or a labelled diagram in this chapter.
Explanation
Three-mark questions want a short explanation, not a full essay. Link the idea to a figure or an activity.
Meta
Class: Class 10 · Subject: Science · Chapter: Heredity · 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 “Most Important Questions” 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.
