Question

The number of atoms which constitute one molecule of an element, is called its

• A. acidity
• B. atomicity
• C. basicity
• D. none of these

Answer 1

The correct option is B

atomicity

Explanation for correct option:

(b) The number of atoms which constitute one molecule of an element is called atomicity.

Explanation for incorrect options:

(a) The measure of ability of the acid to lose its H⁺ ion is called its acidity.

(c) The measure of ability of the base to gain H⁺ ions and lose OH^- ions is called basicity.

Hence, option (b) is correct.