Question

Match List I with List II

List I		List II
A	Benzenesulphonyl chloride	I	Test for primaryamines
B	Hoffmannbromamide reaction	II	Anti Saytzeff
C	Carbylaminereaction	III	Hinsbergreagent
D	Hoffmannorientation	IV	Known reactionof Isocyanates.

Choose the correct answer from the options given below:

• A. A-IV, B -III, C-II, D-I
• B. A-IV, B -II, C-I, D-III
• C. A-III, B -IV, C-I, D-II
• D. A-IV, B -III, C-I, D-II

Answer 1

Answer: (C)

Benzen sulphonyl chloride
(B) Hoffmann bromamide reaction $\to$ known reaction of isocynates
$R-CO-N{H}_2+X_2+4NaOH\to$
$R-N{H}_2+2Na{X}_2+N{a}_{2}C{O}_3+2H_{2}O$
Intermediate $:R-N=C=O$ (isocyanat
(C) Carbylamine reaction $\to$ Test for primary amine
$R-N{H}_2$ or $Ar-N{H}_2+CHC{l}_3+3KOH$
$\to RNC$ or $Ar-NC+3KCl+3H_{2}O$
(D) Hoffmann orientation $\to$ Anti saytzeff (Formation of less substituted alkene as major product)