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Question

Chemistry Question on Oxidation Number

The oxidation number of CrCr in CrO5CrO_5 which has the following structure is

A

+4+4

B

+5+5

C

+6+6

D

+3+3

Answer

+6+6

Explanation

Solution

It has four OO atoms as peroxide with oxidation number =1= -1 and one OO atom with oxidation number =2= - 2. Hence, x+4(1)+1(2)=0x + 4(-1) + 1(-2) = 0 or x=+6x = +6