Question

The symbol for the hydroxide ion is _____.
H
H3O-
H(OH)
OH-

Answer 1

The symbol for the Hydroxide ion is OH-

This is when oxygen and hydron is combined together. Especially with covalent bond.

Answer 2

Answer : The symbol of hydroxide ion is $OH^-$.

Explanation :

Hydroxide ion is a negatively charged molecule which are made up of one oxygen molecule bonded to one hydrogen molecule.

Hydroxide ion is formed by the loss of proton from the water molecule.

The hydroxide ion is represented as $OH^-$.