KEAM 2013 Physics and Chemistry Paper

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Question : 89 of 120

Marks: +1, -0

In the dichromate dianion, the nature of bonds are

four equivalent Cr-O bonds
six equivalent Cr-O bonds and one O - O bond
six equivalent Cr-0 bonds and one Cr-Cr bond
six nonequivalent Cr-O bonds
six equivalent Cr-O bonds and one Cr-O-Cr bond

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