Question

List I	List II
A) One gram atom $A{l}^{3+}$	1) One equivalent
B) One gram atom $A{g}^{+}$	2) Two equivalents
C) Two gram atoms $M{g}^{2+}$	3) Three equivalents
D) Two moles of atoms of hydrogen	4) Four equivalents
	5) Five equivalents

• A. A-3, B-1, C-4, D-2
• B. A-3, B-2, C-1, D-4
• C. A-2, B-3, C-1, D-4
• D. A-2, B-3, C-4, D-1

Answer 1

The correct option is A A-3, B-1, C-4, D-2

Number of equivalents $=$ Number of moles of atoms or number of gram atoms $\times$ valency.

1 gm atom of $A{l}^{3+}$ $=$ 1 x 3 equivalents

= 3 equivalents.

1 gm atom of $A{g}^{+}$ $=$ 1 x 1 equivalent

= 1 equivalent.

2 gm atoms of $M{g}^{2+}$ $=$ 2 x 2 equivalents

= 4 equivalents.

2 moles of atoms of Hydrogen $=$ 1 x 2 equivalents

= 2 equivalents.

Hence,option A is correct.