1.

The \[pH\]of a solution is 2. If its \[pH\] is to be raised to 4, then the \[[{{H}^{+}}]\] of the original solution has to be       [MP PET 1994]

A.                 Doubled
B.                 Halved
C.                 Increased hundred times
D.                 Decreased hundred times
Answer» E.


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