સંકીર્ણો $(A)$ થી $(D)$ ની ફક્ત સ્પીન આધારિત ગણતરી કરેલી ચુંબકીય ચાકમાત્રાનો સાચો ક્રમ જણાવો.

$(A)$ $\mathrm{Ni}(\mathrm{CO})_{4}$

$(B)$ $\left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}$

$(C)$ $\mathrm{Na}_{2}\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]$

$(D)$ $\mathrm{PdCl}_{2}\left(\mathrm{PPh}_{3}\right)_{2}$

Question

સંકીર્ણો $(A)$ થી $(D)$ ની ફક્ત સ્પીન આધારિત ગણતરી કરેલી ચુંબકીય ચાકમાત્રાનો સાચો ક્રમ જણાવો.

$(A)$ $\mathrm{Ni}(\mathrm{CO})_{4}$

$(B)$ $\left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}$

$(C)$ $\mathrm{Na}_{2}\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]$

$(D)$ $\mathrm{PdCl}_{2}\left(\mathrm{PPh}_{3}\right)_{2}$

JEE MAIN 2020, Advanced

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Solution

a
$\left[\mathrm{Ni}(\mathrm{CO})_{4}\right] \quad \mu_{\mathrm{m}}=0 \mathrm{B}. \mathrm{M}$

${\left[\mathrm{Ni}\left(\mathrm{H}_{2} \mathrm{O}\right)_{6}\right] \mathrm{Cl}_{2}}\quad {\mu_{\mathrm{m}}=2.8 \mathrm{B} . \mathrm{M}}$

${\mathrm{Na}_{2}\left[\mathrm{Ni}(\mathrm{CN})_{4}\right]} \quad {\mu_{\mathrm{m}}=0 \mathrm{B.M}}$

$\left[\mathrm{PdCl}_{2}\left(\mathrm{PPh}_{3}\right)_{2}\right] \quad \mu_{\mathrm{m}}=0 \mathrm{B.M}$

$(\mathrm{A}) \approx(\mathrm{C}) \approx(\mathrm{D}) < (\mathrm{B})$

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