In the dichromate ion Cr2O72 -

Question

In the dichromate ion Cr2O72 - (A) 4Cr-O bonds are equivalent (B) 6Cr-O bonds are equivalent (C) All Cr-O bonds are equivalent (D) None of Cr-O bonds are equivalent

Tardigrade Admin · Accepted Answer

<img class="img-fluid question-image" alt="Solution" src="https://cdn.tardigrade.in/q/nta/c-tkbc9vdogzjdypew.jpg" /> -ve charge of oxygen involved in delocalisation and move on only 6 O-atoms so only 6 CrO bonds are equivalent

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

$4 C r - O$ bonds are equivalent

$6 C r - O$ bonds are equivalent

All $C r - O$ bonds are equivalent

None of $C r - O$ bonds are equivalent

-ve charge of oxygen involved in delocalisation and move on only $6 O$ -atoms so only $6 C r O$ bonds are equivalent

Q. In the dichromate ion Cr2​O72−​

4Cr−O bonds are equivalent

6Cr−O bonds are equivalent

All Cr−O bonds are equivalent

None of Cr−O bonds are equivalent