Question

Statement-1: The atomicity of a given compound varies as per its state of matter.
Statement-2: The atomicity of $H_{2}O$ is 4 when it is liquid and 3 when it is ice.

• A. Only Statement-1 is true
• B. Only Statement-2 is true
• C. Both the statements are true.
• D. Both the statements are false.

Answer 1

The correct option is D

Both the statements are false.

Both the statements are false. The atomicity of a given compound is not variable. It is constant.

If the atomicity changes, the number of atoms in the molecule changes which will lead to a new compound.

It will no longer be the same compound.

Considering $H_{2}O$, it has the atomicity 3. If atomicity changes it will be a new compound like $H_2{O}_2$ or an ion like ${H_{3}O}^{+1}$.