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When K(2)Cr(2)O(7) is converted to K(2)C...

When `K_(2)Cr_(2)O_(7)` is converted to `K_(2)CrO_(4)`, the change in the oxidation state of chromium is

A

0

B

3

C

4

D

6

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The correct Answer is:
A
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In the conversion of K_(2)Cr_(2)O_(7) to K_(2)CrO_(4) , the oxidation number of chromium.

When K_(2)Cr_(2)O_(7) is treated with H_(2)O_(2) in acidic medium, in presence and in absence of org. solvent. The oxidation state of chromium finally:

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