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p H of a 1000 c c solution is 2 . It will not change if

Options

  1. A100 c c of water is added to it
  2. B100 c c of 0.1 M H C l is added to it
  3. C100 cc (N/100) HCl is added to it
  4. D1 c c of 0.1 M H C l is added to it.

Correct answer

C. 100 cc (N/100) HCl is added to it

Step-by-step solution

If two solutions of same pH are mixed, no change in pH is observed. pH of water will be 7, that of 100 cc of 0 .1 M HCl and 1 cc of 0 .1 M HCl will be 1 (as H + concentration is 0 .1 ) 0 .01 N HCl has also p H = 2 . So adding this to a 1000 c c solution of pH 2 will not make any difference in p H

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