Question

7.
The pH of 0.1 M monobasic acid is 4.50. The acidity constant (K) of the monobasic acid is-
(1) 1.0 x 10-7
(2) 1.0 x 10
(3) 1.0 x 10-4
(4) 1.0 x 10​

Answer 1

can u tell clearly I didn't understand