1.

The \[{{H}^{+}}\]ion concentration is \[1.0\times {{10}^{-6}}\] mole/litre in a solution. Its pH value will be [MP PMT 1985; AFMC 1982]

A.                 12          
B.                 6
C.                 18          
D.                 24
Answer» C.                 18          


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