Question

Match the following and write the order for ABCD.

List - I	List - II
A) Decarboxylating agent	1) Conc $H_{2}S{O}_4/{170}^{0}C$
B) Dehydrohalogenating agent	2) $NaOH$ + $CaO$
C) Dehalogenating agent	3) $Zn$ dust
D) Dehydrating agent	4) aq $KOH$
	5) alcoholic $KOH$

• A. 1 2 3 4
• B. 2 4 3 1
• C. 2 5 3 1
• D. 1 5 3 4

Answer 1

Answer: (C)

2 5 3 1

Benzene can be produced by reduction of acid salt with soda lime $(NaOH+CaO)$, so soda lime is a decarboxylating agent.

Conc. $H_{2}S{O}_4$ is used to remove water, so $H_{2}S{O}_4$ is dehydrating agent.

Alc. $KOH$ is used to remove $HX$ from any compound to form alkene, so it is a dehydrohalogenating agent.

Zn dust is used to remove $X_2$, so it is a dehalogenating agent.