An aqueous solution of sodium carbonate has a `pH` greater than `7` because

Options

A. It contains more carbonate ions than `H_(2)O` molecules
B. Contains more hydroxide ions than carbonate ions
C. `Na^(+)`ions react with water
D. Carbonate ions react with `H_(2)O`

Answer

B

Explanation

`pH gt 7 ` = Basic
It means contain more hydroxide ions than carbonate ions .