Among the following
(a) ` P^(H) ` of water decreases with increase in temperature
(b) `P^(H) ` of water decrease by the addition of base
© `P^(H) ` of water increases by the addition of acid
(d) At any temperature `P^(H) ` of water is equal to ` P^(K_w)//2`

Options

A. All are correct
B. b,c,d are correct
C. a and d are correct
D. a, b and c are correct

Answer

C

Explanation

As ` T uparrow K_W uparrow therefore PK_W uparrow therefore pH uparrow `
on adding base pH ` gt ` 7 , on adding acid `pH lt 7 `