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CBSE Class 12 Chemistry — Organic Chemistry Question Paper & Practice Test

25 syllabus-aligned questions covering nomenclature, reaction mechanisms, and functional groups in organic chemistry. Preview 5 for free — sign up to generate, customize, and download the complete test as a printable PDF.

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CBSE Class 12 Chemistry — Organic Chemistry
25-Question Practice Test · Mixed Difficulty · CBSE-Aligned
MCQ
Q1.
Which of the following is the correct IUPAC name for CH₃–CH₂–CHO?
A) Propan-1-ol
B) Propanal
C) Propanone
D) Propanoic acid
Correct Answer: B
Short Answer
Q2.
Differentiate between SN1 and SN2 reactions on the basis of reaction kinetics and stereochemistry.
Assertion-Reason
Q3.
Assertion (A): Phenol is more acidic than ethanol.
Reason (R): The phenoxide ion formed after loss of a proton from phenol is stabilised by resonance, whereas the ethoxide ion is not.

Choose the correct option:
A) Both A and R are true, and R is the correct explanation of A.
B) Both A and R are true, but R is not the correct explanation of A.
C) A is true but R is false.
D) A is false but R is true.
Conceptual
Q4.
Explain why haloalkanes readily undergo nucleophilic substitution reactions while haloarenes are generally resistant to them.
Problem-Solving
Q5.
Write the major product formed when 2-bromopropane reacts with alcoholic KOH. Name the type of reaction and mechanism involved.

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