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  4. In the dichromate ion Cr2O72 -

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Q. In the dichromate ion $Cr_{2}O_{7}^{2 -}$

NTA AbhyasNTA Abhyas 2022

Solution:

Solution
-ve charge of oxygen involved in delocalisation and move on only $6 O$-atoms so only $6 \,CrO$ bonds are equivalent