question_answer

The concentration of \[[{{H}^{+}}]\] and concentration of \[[O{{H}^{-}}]\] of a 0.1 M aqueous solution of 2% ionised weak monobasic acid is:

[ionic product of water\[=1\times {{10}^{-14}}\]]                                                [AIPMT 1999]

A)        \[0.02\times {{10}^{-3}}\,M\] and \[5\times {{10}^{-11}}\,M\]

B)       \[1\times {{10}^{-3}}\,M\] and \[3\times {{10}^{-11}}\,M\]

C)  \[2\times {{10}^{-3}}\,M\] and \[5\times {{10}^{-12}}\,M\]                  

D)  \[3\times {{10}^{-2}}\,M\] and \[4\times {{10}^{-13}}\,M\]

Correct Answer: C

Solution :

in monobasic acid

= molarity × degree of ionisation