pH of saturated solution of silver salt of monobasic acid HA is found to be 9. Find the Ksp of sparingly soluble salt Ag A(s). Given : Ka(HA) = 10⁻¹⁰
a)1.1 × 10⁻¹¹
b) 1.1 × 10⁻¹⁰
c)10⁻¹²
d)None of these