Question

Which statement is true about sodium hydroxide (NaOH)?

It is a salt because it increases the concentration of metallic ions.
It is a salt because it is formed by the reaction of an acid and a base.
It is a base because it increases the concentration of hydrogen ions.
It is a base because it increases the concentration of hydroxide ions.

Answer 1

NaOH is not a salt cuz' its not neutral. Its -OH part increases the conc of hydroxide ions. So ans is It is a base because it increases the concentration of hydroxide ions.

Answer 2

It's a base because it increases the concentration of hydroxid ions