Among mathrm{CrO}, mathrm{Cr}_2 mathrm{O}_3 a | vedclass

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Question

CrO Basic oxide

$\mathrm{Cr}_2 \mathrm{O}_3$ Amphoteric oxide

In $\mathrm{CrO}, \mathrm{Cr}$ exist as $\mathrm{Cr}^{+2}$ and have $\mu$ only $=4.90$

Vedclass · Accepted Answer

$877$

Vedclass · Answer

CrO Basic oxide

$\mathrm{Cr}_2 \mathrm{O}_3$ Amphoteric oxide

In $\mathrm{CrO}, \mathrm{Cr}$ exist as $\mathrm{Cr}^{+2}$ and have $\mu$ only $=4.90$

In $\mathrm{Cr}_2 \mathrm{O}_3, \mathrm{Cr}$ exist as $\mathrm{Cr}^{+3}$ and have $\mu$ only $=3.87$

Sum of spin only magnetic moment

$=4.90+3.87=8.77$

$\mu_{	ext {only }}=877 	imes 10^{-2}$

Ans. $877$

Among $\mathrm{CrO}, \mathrm{Cr}_2 \mathrm{O}_3$ and $\mathrm{CrO}_3$, the sum of spin-only magnetic moment values of basic and amphoteric oxides is . . . . . . . . $10^{-2} \mathrm{BM}$ (nearest integer).

(Given atomic number of $\mathrm{Cr}$ is 24 )