Question

number of identical SCR bond of bonds in dichromate ion is

Answer 1

The correct answer is -  There are '6' identical Cr - O bonds in the dichromate ion (Cr₂O₇⁻²).

In a dichromate ion Cr₂O₇⁻², there are 6 terminal Cr – O bonds. All these bonds are equivalent due to resonance.

The Dichromate ions (Cr₂O₇⁻²) are oxoanions of chromium in the oxidation state +6.