Important Formulas for Class 12 Chemistry. 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.
Choose the correct statement related to Solutions in the chapter Solutions.
A. Ideal vs non-ideal
B. Solutions is an NCERT chapter taught in CBSE Class 12 Chemistry
C. Molarity, molality, mole fraction
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. Molarity, molality, mole fraction
Explanation
Molarity, molality, mole fraction. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Solutions · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Solutions in the chapter Solutions.
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. ΔTb, ΔTf, osmotic pressure
D. Raoult’s law
Answer
D. Raoult’s law
Explanation
Raoult’s law. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Solutions · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Solutions in the chapter Solutions.
A. van’t Hoff factor i
B. Ideal vs non-ideal
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Write three points from Solutions in your own words; that is enough for a short-answer start
Answer
B. Ideal vs non-ideal
Explanation
Ideal vs non-ideal. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Solutions · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Solutions in the chapter Solutions.
A. Solutions is an NCERT chapter taught in CBSE Class 12 Chemistry
B. Use the terms used in the NCERT book; do not replace them with unofficial names
C. ΔTb, ΔTf, osmotic pressure
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. ΔTb, ΔTf, osmotic pressure
Explanation
ΔTb, ΔTf, osmotic pressure. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Solutions · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Electrochemistry in the chapter Electrochemistry.
A. Electrochemistry is an NCERT chapter taught in CBSE Class 12 Chemistry
B. CBSE often tests a concept by asking a daily-life example from the same chapter
C. Daniel cell
D. Λm and κ
Answer
C. Daniel cell
Explanation
Daniel cell. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Electrochemistry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Electrochemistry in the chapter Electrochemistry.
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. Nernst equation
D. Faraday’s laws
Answer
C. Nernst equation
Explanation
Nernst equation. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Electrochemistry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Electrochemistry in the chapter Electrochemistry.
A. Batteries and fuel cells as in chapter
B. Write three points from Electrochemistry 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. Λm and κ
Answer
D. Λm and κ
Explanation
Λm and κ. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Electrochemistry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Electrochemistry in the chapter Electrochemistry.
A. Electrochemistry is an NCERT chapter taught in CBSE Class 12 Chemistry
B. Faraday’s laws
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. Faraday’s laws
Explanation
Faraday’s laws. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Electrochemistry · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Chemical Kinetics in the chapter Chemical Kinetics.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Rate law
C. First order t½=0.693/k
D. Chemical Kinetics is an NCERT chapter taught in CBSE Class 12 Chemistry
Answer
B. Rate law
Explanation
Rate law. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Chemical Kinetics · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Chemical Kinetics in the chapter Chemical Kinetics.
A. Order vs molecularity
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. Arrhenius k=Ae^{−Ea/RT}
Answer
A. Order vs molecularity
Explanation
Order vs molecularity. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Chemical Kinetics · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to First order t½=0 in the chapter Chemical Kinetics.
A. Collision theory outline
B. Write three points from Chemical Kinetics 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. First order t½=0.693/k
Answer
D. First order t½=0.693/k
Explanation
First order t½=0.693/k. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Chemical Kinetics · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Chemical Kinetics in the chapter Chemical Kinetics.
A. Use the terms used in the NCERT book; do not replace them with unofficial names
B. Chemical Kinetics is an NCERT chapter taught in CBSE Class 12 Chemistry
C. Arrhenius k=Ae^{−Ea/RT}
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. Arrhenius k=Ae^{−Ea/RT}
Explanation
Arrhenius k=Ae^{−Ea/RT}. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Chemical Kinetics · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to The d- and f-Block Elements in the chapter The d- and f-Block Elements.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Variable oxidation states
C. Coloured ions
D. The d- and f-Block Elements is an NCERT chapter taught in CBSE Class 12 Chemistry
Answer
B. Variable oxidation states
Explanation
Variable oxidation states. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: The d- and f-Block Elements · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to The d- and f-Block Elements in the chapter The d- and f-Block Elements.
A. Catalytic properties
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. Lanthanoid contraction
Answer
A. Catalytic properties
Explanation
Catalytic properties. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: The d- and f-Block Elements · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to The d- and f-Block Elements in the chapter The d- and f-Block Elements.
A. Write three points from The d- and f-Block Elements 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. KMnO4, K2Cr2O7 as in text
D. Coloured ions
Answer
D. Coloured ions
Explanation
Coloured ions. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: The d- and f-Block Elements · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to The d- and f-Block Elements in the chapter The d- and f-Block Elements.
A. The d- and f-Block Elements is an NCERT chapter taught in CBSE Class 12 Chemistry
B. Use the terms used in the NCERT book; do not replace them with unofficial names
C. Lanthanoid contraction
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. Lanthanoid contraction
Explanation
Lanthanoid contraction. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: The d- and f-Block Elements · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Coordination Compounds in the chapter Coordination Compounds.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Coordination number
C. Coordination Compounds is an NCERT chapter taught in CBSE Class 12 Chemistry
D. Isomerism
Answer
B. Coordination number
Explanation
Coordination number. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Coordination Compounds · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Coordination Compounds in the chapter Coordination Compounds.
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. IUPAC names
D. VBT vs CFT
Answer
C. IUPAC names
Explanation
IUPAC names. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Coordination Compounds · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Coordination Compounds in the chapter Coordination Compounds.
A. Isomerism
B. Importance: haemoglobin, EDTA
C. Every chapter ends with keywords or a summary that is useful for one-mark answers
D. Write three points from Coordination Compounds in your own words; that is enough for a short-answer start
Answer
A. Isomerism
Explanation
Isomerism. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Coordination Compounds · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Coordination Compounds in the chapter Coordination Compounds.
A. Use the terms used in the NCERT book; do not replace them with unofficial names
B. Coordination Compounds is an NCERT chapter taught in CBSE Class 12 Chemistry
C. VBT vs CFT
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. VBT vs CFT
Explanation
VBT vs CFT. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Coordination Compounds · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Haloalkanes and Haloarenes in the chapter Haloalkanes and Haloarenes.
A. Aryl halides less reactive to SN
B. CBSE often tests a concept by asking a daily-life example from the same chapter
C. SN1 and SN2
D. Haloalkanes and Haloarenes is an NCERT chapter taught in CBSE Class 12 Chemistry
Answer
C. SN1 and SN2
Explanation
SN1 and SN2. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Haloalkanes and Haloarenes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Haloalkanes and Haloarenes in the chapter Haloalkanes and Haloarenes.
A. Environmental note on halo compounds
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. Optical isomerism in haloalkanes
Answer
D. Optical isomerism in haloalkanes
Explanation
Optical isomerism in haloalkanes. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Haloalkanes and Haloarenes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Haloalkanes and Haloarenes in the chapter Haloalkanes and Haloarenes.
A. Grignard intro
B. Write three points from Haloalkanes and Haloarenes 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. Aryl halides less reactive to SN
Answer
D. Aryl halides less reactive to SN
Explanation
Aryl halides less reactive to SN. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Haloalkanes and Haloarenes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Haloalkanes and Haloarenes in the chapter Haloalkanes and Haloarenes.
A. Environmental note on halo compounds
B. Use the terms used in the NCERT book; do not replace them with unofficial names
C. Haloalkanes and Haloarenes is an NCERT chapter taught in CBSE Class 12 Chemistry
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
A. Environmental note on halo compounds
Explanation
Environmental note on halo compounds. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Haloalkanes and Haloarenes · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Acidity in the chapter Alcohols, Phenols and Ethers.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Acidity: phenol > water > alcohol
C. Kolbe, Reimer–Tiemann as in NCERT
D. Alcohols, Phenols and Ethers is an NCERT chapter taught in CBSE Class 12 Chemistry
Answer
B. Acidity: phenol > water > alcohol
Explanation
Acidity: phenol > water > alcohol. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Alcohols, Phenols and Ethers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Alcohols, Phenols and Ethers in the chapter Alcohols, Phenols and Ethers.
A. Lucas test
B. Williamson synthesis
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. Lucas test
Explanation
Lucas test. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Alcohols, Phenols and Ethers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Alcohols, Phenols and Ethers in the chapter Alcohols, Phenols and Ethers.
A. Write three points from Alcohols, Phenols and Ethers 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. Methanol and ethanol uses
D. Kolbe, Reimer–Tiemann as in NCERT
Answer
D. Kolbe, Reimer–Tiemann as in NCERT
Explanation
Kolbe, Reimer–Tiemann as in NCERT. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Alcohols, Phenols and Ethers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Alcohols, Phenols and Ethers in the chapter Alcohols, Phenols and Ethers.
A. Use the terms used in the NCERT book; do not replace them with unofficial names
B. Alcohols, Phenols and Ethers is an NCERT chapter taught in CBSE Class 12 Chemistry
C. Williamson synthesis
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. Williamson synthesis
Explanation
Williamson synthesis. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Alcohols, Phenols and Ethers · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Aldehydes, Ketones and Carboxylic Acids in the chapter Aldehydes, Ketones and Carboxylic Acids.
A. Tollens, Fehling
B. Nucleophilic addition
C. CBSE often tests a concept by asking a daily-life example from the same chapter
D. Aldehydes, Ketones and Carboxylic Acids is an NCERT chapter taught in CBSE Class 12 Chemistry
Answer
B. Nucleophilic addition
Explanation
Nucleophilic addition. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Aldehydes, Ketones and Carboxylic Acids · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Aldehydes, Ketones and Carboxylic Acids in the chapter Aldehydes, Ketones and Carboxylic Acids.
A. Acidity of carboxylic acids
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. Aldol, Cannizzaro as in syllabus
Answer
D. Aldol, Cannizzaro as in syllabus
Explanation
Aldol, Cannizzaro as in syllabus. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Aldehydes, Ketones and Carboxylic Acids · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Aldehydes, Ketones and Carboxylic Acids in the chapter Aldehydes, Ketones and Carboxylic Acids.
A. Write three points from Aldehydes, Ketones and Carboxylic Acids 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. Tollens, Fehling
D. Hell–Volhard–Zelinsky if included
Answer
C. Tollens, Fehling
Explanation
Tollens, Fehling. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Aldehydes, Ketones and Carboxylic Acids · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Aldehydes, Ketones and Carboxylic Acids in the chapter Aldehydes, Ketones and Carboxylic Acids.
A. Use the terms used in the NCERT book; do not replace them with unofficial names
B. Acidity of carboxylic acids
C. CBSE often tests a concept by asking a daily-life example from the same chapter
D. Aldehydes, Ketones and Carboxylic Acids is an NCERT chapter taught in CBSE Class 12 Chemistry
Answer
B. Acidity of carboxylic acids
Explanation
Acidity of carboxylic acids. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Aldehydes, Ketones and Carboxylic Acids · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Amines in the chapter Amines.
A. Basicity order in gas vs aqueous as taught
B. Carbylamine
C. CBSE often tests a concept by asking a daily-life example from the same chapter
D. Amines is an NCERT chapter taught in CBSE Class 12 Chemistry
Answer
A. Basicity order in gas vs aqueous as taught
Explanation
Basicity order in gas vs aqueous as taught. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Amines · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Amines in the chapter Amines.
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. Diazonium coupling
D. Hinsberg test
Answer
D. Hinsberg test
Explanation
Hinsberg test. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Amines · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Amines in the chapter Amines.
A. Aniline bromination
B. Write three points from Amines 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. Carbylamine
Answer
D. Carbylamine
Explanation
Carbylamine. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Amines · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Amines in the chapter Amines.
A. Use the terms used in the NCERT book; do not replace them with unofficial names
B. Amines is an NCERT chapter taught in CBSE Class 12 Chemistry
C. Diazonium coupling
D. CBSE often tests a concept by asking a daily-life example from the same chapter
Answer
C. Diazonium coupling
Explanation
Diazonium coupling. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Amines · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q1MCQ1 markEasyRevision pick
Choose the correct statement related to Biomolecules in the chapter Biomolecules.
A. CBSE often tests a concept by asking a daily-life example from the same chapter
B. Glucose structure outline
C. Enzymes
D. Biomolecules is an NCERT chapter taught in CBSE Class 12 Chemistry
Answer
B. Glucose structure outline
Explanation
Glucose structure outline. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Biomolecules · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q2MCQ1 markEasy
Choose the correct statement related to Biomolecules in the chapter Biomolecules.
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. Peptide bond
D. DNA double helix idea
Answer
C. Peptide bond
Explanation
Peptide bond. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Biomolecules · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q3MCQ1 markEasy
Choose the correct statement related to Biomolecules in the chapter Biomolecules.
A. Every chapter ends with keywords or a summary that is useful for one-mark answers
B. Write three points from Biomolecules in your own words; that is enough for a short-answer start
C. Vitamins: water vs fat soluble
D. Enzymes
Answer
D. Enzymes
Explanation
Enzymes. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Biomolecules · Original GKSchools practice (NCERT-aligned, not an official CBSE paper).
Q4MCQ1 markEasy
Choose the correct statement related to Biomolecules in the chapter Biomolecules.
A. Biomolecules is an NCERT chapter taught in CBSE Class 12 Chemistry
B. DNA double helix idea
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. DNA double helix idea
Explanation
DNA double helix idea. The other options mix ideas from nearby topics or reverse the textbook fact.
Meta
Class: Class 12 · Subject: Chemistry · Chapter: Biomolecules · 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-12/, then subject and chapter slugs.
Why is this a separate URL?
So students searching for “Important Formulas” 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.
