In acidic medium, H 2 O 2 changes C r 2 O 7 - 2 to C r O 5 which has two - O - O - bonds Oxidation state of…

In acidic medium, H2O2 changes Cr2O7-2 to CrO5 which has two -O-O- bonds Oxidation state of Cr in CrO5 is:
  1. +5
  2. +3
  3. +6
  4. -10

Solution

Chromium forms six bonds with the oxygen atoms and oxygen is more electronegative than the chromium. Due to this chromium shows oxidation state in CrO5 is +6.

Asked in: NEET 2014

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