Question

The pH of 0.1 Mmonobasic acid is 4.50. The acidity constant (K) of the monobasic acid is-
(1) 1.0 x107
(2) 1.0 x 10-5
(3) 1.0 x 104
(4) 1.0 x 10​

Answer 1

option (3) 1.0 × 10⁴ is the correct answer