1
JEE Main 2021 (Online) 17th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
Primary, secondary and tertiary amines can be separated using:
A
Chloroform and KOH
B
Acetyl amide
C
Benzene sulphonic acid
D
para-Toluene sulphonyl chloride
2
JEE Main 2021 (Online) 17th March Morning Shift
MCQ (Single Correct Answer)
+4
-1
Hoffmann bromomide degradation of benzamide gives product A, which upon heating with CHCl3 and NaOH gives product B.

The structures of A and B are :
A
JEE Main 2021 (Online) 17th March Morning Shift Chemistry - Compounds Containing Nitrogen Question 99 English Option 1
B
JEE Main 2021 (Online) 17th March Morning Shift Chemistry - Compounds Containing Nitrogen Question 99 English Option 2
C
JEE Main 2021 (Online) 17th March Morning Shift Chemistry - Compounds Containing Nitrogen Question 99 English Option 3
D
JEE Main 2021 (Online) 17th March Morning Shift Chemistry - Compounds Containing Nitrogen Question 99 English Option 4
3
JEE Main 2021 (Online) 16th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
Which of the following is least basic?
A
$${(C{H_3}CO)_2}\mathop N\limits^{..} H$$
B
$$(C{H_3}CO)\mathop N\limits^{..} H{C_2}{H_5}$$
C
$${({C_2}{H_5})_3}\mathop N\limits^{..} $$
D
$${({C_2}{H_5})_2}\mathop N\limits^{..} H$$
4
JEE Main 2021 (Online) 16th March Evening Shift
MCQ (Single Correct Answer)
+4
-1
Ammonolysis of Alkyl halides followed by the treatment with NaOH solution can be used to prepare primary, secondary and tertiary amines. The purpose of NaOH in the reaction is :
A
to remove acidic impurities
B
to remove basic impurities
C
to activate NH3 used in the reaction
D
to increase the reactivity of alkyl halide
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