Question

A polyatomic ion can be formed from two or more atoms of same or different elements.

• A. True
• B. False

Answer 1

The correct option is A True

A polyatomic ion is a charged species composed of two or more atoms covalently bonded from two or more atoms of same or different element . For example,

Hydroxide ion is consisting of one oxygen and one hydrogen atom with a charge of $-1$ $\left(O{H}^{-}\right)$ ion

Ammonium ion $\left(N{H}_4^{+}\right)$ is consisting of one nitrogen and one hydrogen atom with a charge of $+1$

Other examples are Sulfate ion $(S{O}_4^2-)$, Carbonate $(C{O}_3^2-)$, Nitrite $\left(N{O}_2^{-}\right)$, Nitrate $\left(N{O}_3^{-}\right)$, etc.