1
MCQ (Single Correct Answer)

AIPMT 2003

The correct order of reactivity towards the electrophilic substitution of the compounds aniline (I), benzene (II) and nitrobenzene (III) is
A
III > II > I
B
II > III > I
C
I < II > III
D
I > II > III

Explanation



–NH2 group is electron donating hence increases electron density on ring. Benzene is also electron rich due to delocalisation of electrons. –NO2 group is electron withdrawing hence, decreases electron density on ring. Thus, correct order for electrophilic substitution is I $$>$$ II $$>$$ III.
2
MCQ (Single Correct Answer)

AIPMT 2003

Which one of the following is a free-radical substitution reaction ?
A
B
C
D

Explanation

3
MCQ (Single Correct Answer)

AIPMT 2003

The compound

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

Explanation

4
MCQ (Single Correct Answer)

AIPMT 2002

When CH3CH2CHCl2 is treated with NaNH2, the product formed is
A
CH3 $$-$$ CH $$=$$ CH2
B
CH3 $$-$$ C $$ \equiv $$ CH
C
D

Explanation

EXAM MAP

Joint Entrance Examination

JEE Advanced JEE Main

Graduate Aptitude Test in Engineering

GATE CE GATE ECE GATE ME GATE IN GATE EE GATE CSE GATE PI

Medical

NEET

CBSE

Class 12