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Question

Cr2O27pH=x−−CrO24pH=y−−Cr2O27.The pH values of x and y can be:
  1. 4 and 5
  2. 4 and 8
  3. 8 and 4
  4. 8 and 9


Solution

The correct option is C 8 and 4
Cr2O27pH=8−−CrO24
CrO24pH=4−−Cr2O27

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