1.

In a solution of \[pH=5,\] more acid is added in order to reduce the \[pH=2.\] The increase in hydrogen ion concentration is                [MP PET 1989; CPMT 1990]

A.                 100 times            
B.                 1000 times
C.                 3 times
D.                 5 times
Answer» C.                 3 times


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