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0 votes
3.2k views
in Chemistry by (73.1k points)

The number of electrons required to reduce chromium completely in Cr2O2-7 to Cr3+ in acidic medium, is 

(A)   5

(B)   3

(C)   6

(D)   2 

1 Answer

+1 vote
by (59.6k points)
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Best answer

Correct option  (C) 6

Explanation:

∴  no of electron = 6 

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