Question

The molecular formula of a compound can be determined by the valency of the elements present in the compound.

• A. True
• B. False

Answer 1

The correct option is A True

The molecular formula of a compound can be determined by the valency of the elements present.

Valency is the combining capacity of an element. For example in water, the elements are oxygen and hydrogen and, the combining capacity of oxygen is two and, that of hydrogen is 1. So to form a neutral molecule, two hydrogens will combine with one oxygen. The formula will be $H_{2}O$. Thus, the molecular formula of a compound can be found with the help of valency. Hence, option A is correct.