Question

Match List - I with List - II and select correct answer using following codes:

List - I		List - II
a.	HI	1.	Monobasic acid
b.	H3BO3	2.	Dibasic acid
c.	H3PO3	3.	Protophilic solvent
d.	Liquid NH3	4.	Strong reducing agent

1. a - 1, b - 2, c - 3, d - 4
2. a - 4, b - 1, c - 2, d - 3
3. a - 4, b - 3, c - 2, d - 1
4. a - 1, b - 4, c - 2, d - 3

Answer 1

Correct Answer - Option 2 : a - 4, b - 1, c - 2, d - 3

Concept:

• Monobasic acid 

An acid that can donate only one hydrogen ion to a base in an acid-base reaction is known as monobasic acid.

HCl, H₃BO₃ are examples of monobasic acid. 

• Dibasic acid 

Dibasic acid has two replaceable hydrogen atoms per acid molecule.

H₂SO₄, H₃PO₃ are examples of dibasic acid. 

• Protophilic solvent

Solvents have a greater tendency to accept protons. 

Water, alcohol and liquid ammonia are examples of protophilic solvents.

• Reducing Agent

A reducing agent is a substance that can be oxidized by losing some of its electrons. 

LiAlH₄, HI are examples of reducing agents. 

Explanation:

List - I	List - II
a. HI	4.  Strong reducing agent
b. H3BO3	1.Monobasic acid
c. H3PO3	2.Dibasic acid
d.Liquid NH3	3. Protophilic solvent