1

NEET 2021

MCQ (Single Correct Answer)
The intermediate compound 'X' in the following chemical reaction is :

A
B
C
D

Explanation

This is Etard reaction in which reaction of toluene with chromyl chloride in CCl4 followed by hydrolysis gives benzaldehyde. Toluene reacts with chromyl chloride to form a precipitate called the Etard complex.

2

NEET 2020 Phase 1

MCQ (Single Correct Answer)
Which of the following amine will give the carbylamine test?
A
B
C
D

Explanation

Aliphatic and aromatic primary amines gives carbylamine reaction (isocyanide test).
3

NEET 2019

MCQ (Single Correct Answer)
The major product of the following reaction is :
A
B
C
D

Explanation

4

NEET 2019

MCQ (Single Correct Answer)
The correct order of the basic strength of methyl substituted amines in aqueous solution is :
A
(CH3)3N > (CH3)2NH > CH3NH2
B
CH3NH2 > (CH3)2NH > (CH3)3N
C
(CH3)2NH > CH3NH2 > (CH3)3N
D
(CH3)3N > CH3NH2 > (CH3)2NH

Explanation

The basic strength of methyl substituted amines in aqueous form is together affected by inductive effect, solvation effect and steric hindrance. So, the correct order of basic strength will be :

(CH3)2NH > CH3NH2 > (CH3)3N

Joint Entrance Examination

JEE Advanced JEE Main

Graduate Aptitude Test in Engineering

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

Medical

NEET

CBSE

Class 12