Which of the following is not correct ?

Options

A. `[H^(+)]=[OH^(-)]=sqrt(K_(w))` for a neutral solution at temperatures
B. `[H^(+)]=[OH^(-)]=10^(-7)` for a neutral solution at all temperatures
C. `[H^(+)]ltsqrt(K_(w))` and `[OH^(-)]gtsqrt(K_(w))` for an acidic solution
D. `[H^(+)]gtsqrt(K_(w))` and `[OH^(-)]ltsqrt(K_(w))` for an alkaline solution

Answer

B

Explanation

`K_(w)` changes with temperature.