question_answer

Which of the following statement(s) is(are) correct [IIT 1998]

A)                 The \[pH\] of \[1.0\times {{10}^{-8}}\,M\]solution of \[HCl\] is 8

B)                 The conjugate base of \[{{H}_{2}}PO_{4}^{-}\] is \[HPO_{4}^{2-}\]

C)                 Autoprotolysis constant of water increases with temperature

D)                 When a solution of a weak monoprotic acid is titrated against a strong base, at half neutralization point \[pH=\tfrac{1}{2}p{{K}_{a}}\]