JEE Main + Advanced

Mock Test 1 — Organic Chemistry

15 questions • 60 minutes • auto-graded with full solutions
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Section A — MCQ (Single Correct)
Question 1

IUPAC name of $CH_3CH_2COCH_3$:

Question 2

Number of optical isomers of $CH_3CHBrCH_2OH$:

Question 3

Most acidic compound:

Question 4

Most stable resonance form has:

Question 5

Increasing acidity: $CH_3COOH$, $ClCH_2COOH$, $CHCl_2COOH$, $CCl_3COOH$:

Question 6

Most stable carbocation:

Question 7

-CHO group is named in IUPAC as:

Question 8

Tautomers of acetaldehyde:

Question 9

Cis-trans isomerism is shown by:

Question 10

Inductive effect order: -F vs -OH vs -CH₃:

Section B — Integer Type
Question 11 — Integer answer

Number of structural isomers of $C_5H_{12}$:

Enter an integer value.
Question 12 — Integer answer

Number of chiral centers in glucose ($C_6H_{12}O_6$):

Enter an integer value.
Question 13 — Integer answer

Number of free radicals formed in homolytic cleavage of $H_2$:

Enter an integer value.
Section C — Assertion & Reasoning
Question 14 — Assertion / Reason

Assertion (A): Tertiary carbocations are more stable than primary. Reason (R): Tertiary carbocations have more α-hydrogens, leading to greater hyperconjugation and +I effect.

Question 15 — Assertion / Reason

Assertion (A): Aniline ($C_6H_5NH_2$) is a weaker base than methylamine. Reason (R): In aniline, the lone pair on N is delocalized into the benzene ring through resonance, making it less available for protonation.