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1

AIPMT 2003

MCQ (Single Correct Answer)
Which one of the following is a free-radical substitution reaction ?
A
B
C
D

Explanation

2

AIPMT 2003

MCQ (Single Correct Answer)
The compound

on reaction with NaIO4 in the presence of KMnO4 gives
A
CH3COCH3
B
CH3COCH3 + CH3COOH
C
CH3COCH3 + CH3CHO
D
CH3CHO + CO2

Explanation

3

AIPMT 2002

MCQ (Single Correct Answer)
When CH3CH2CHCl2 is treated with NaNH2, the product formed is
A
CH3 $$-$$ CH $$=$$ CH2
B
CH3 $$-$$ C $$ \equiv $$ CH
C
D

Explanation

4

AIPMT 2001

MCQ (Single Correct Answer)
The correct acidic order of the following is

A
I > II > III
B
III > I > II
C
II > III > I
D
I > III > II

Explanation

Presence of electron withdrawing groups (– NO2, –X, – CN) increase the acidity of phenols while the presence of electron releasing groups (– NH2, – CH3) decrease the acidity of phenols. This explains the following order of acidity.

p-nitrophenol > phenol > p-cresol.

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