MCQ
In the dichromate dianion
- A$4\,Cr - O$ bonds are equivalent
- ✓$6\,Cr - O$ bonds are equivalent
- CAll $Cr - O$ bonds are equivalent
- DAll $Cr - O$ bonds are non-equivalent
✓
Answer
Correct option: B.
$6\,Cr - O$ bonds are equivalent
(b) Dichromate dianion has following structure
${\left[ {O \leftarrow \mathop {\mathop {Cr}\limits_ \downarrow ^ \uparrow }\limits_O^O - O - \mathop {\mathop {Cr}\limits_ \downarrow ^ \uparrow }\limits_O^O \to O} \right]^{2 - }}$
$6,$ $Cr - O$ bonds are equivalent.
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