Question

$C{r}_2{O}_7^{2-}+4H_2{O}_2+2H^{+}\underset{solvent}{\overset{organic}{\to }}X+5H_{2}O$

Find the value of magnetic moment of X.

• A. 0
• B. $\sqrt{3}$
• C. $\sqrt{1}5$
• D. $\sqrt{8}$

Answer 1

The correct option is A 0

$C{r}_2{O}_7^{2-}+4H_2{O}_2+2H^{+}\underset{solvent}{\overset{organic}{\to }}Cr{O}_5+5H_{2}O$
here in $Cr{O}_5$ Cr shows +6 oxidation state ($d^0{s}^0$)

Thuse there are no unpaired electrons.
so value of magnetic moment
$\mu =0$