Question

Match the compounds in LIST-I with the observations in LIST-II, and choose the correct option.
 

LIST-I			LIST-II
I	Aniline	P	Sodium fusion extract of the compound on boiling with FeSO4, followed by acidification with conc. H2SO4, gives Prussian blue color.
II	o-Cresol	Q	Sodium fusion extract of the compound on treatment with sodium nitroprusside gives blood red color.
III	Cysteine	R	Addition of the compound to a saturated solution of NaHCO3 results in effervescence.
IV	Coprolactam	S	The compound reacts with bromine water to give a white precipitate
		T	Treating the compound with neutral FeCl3 solution produces violet color.

• A. I → P, Q; II → S; III → Q, R; IV → P
• B. I → P ; II → R, S; III → R; IV → Q, S
• C. I → Q, S; II → P, T; III → P; IV → S
• D. I → P, S; II → T; III → Q, R; IV → P

Answer 1

The Correct Option is D

: Blue colour in Lassign test due to presence of N

 

 

 

:Violet colour with FeCl₃ due to presence of phenolic OH

: It gives blood red colour with NaSCN

Caprolactam:

: Blue colour in Lassign test due to presence of N

Answer 2

1. Aniline (I):

Aniline reacts with bromine water and gives a white precipitate (reaction with bromine water).
So, Aniline corresponds to S.

2. o-Cresol (II):

The fusion extract of o-Cresol on treatment with sodium nitroprusside gives a blood-red color.
This corresponds to Q.

3. Cysteine (III):

Cysteine reacts with a saturated solution of NaHCO₃ and gives effervescence due to the release of CO₂.
This corresponds to R.

4. Coprolactam (IV):

Coprolactam, when treated with neutral FeCl₃, gives a violet color.
This corresponds to T.

Correct Option:

The correct option is D: I → P, S; II → T; III → Q, R; IV → P