The pH of a 0. 01 M HNO2(aq) solution is in which of the following ranges? (For HNO2(aq). Ka = 4. 0 × 10⁻⁴
(A) Between 1 and 2
(B) Between 2 and 3
(C) Between 4 and 5
(D) Between 6 and 7