1.

The reduction potential (in volt) of a hydrogen electrode set up with a \[2\times {{10}^{-2}}M\] aqueous solution of a weak mono basic acid \[({{K}_{a}}=5\times {{10}^{-5}})\] at one atmosphere and \[25{}^\circ C\] is

A. +0.09              
B. 0.18
C. \[-0.09\]            
D. \[-0.18\]
Answer» E.


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