A copper salt is isomorphic with $\mathrm{ZnSO}_{4}$, the salt will be

A copper salt is isomorphic with $\mathrm{ZnSO}_{4}$, the salt will be
  1. Paramagnetic
  2. Diamagnetic
  3. Ferromagnetic
  4. None

Solution

$\mathrm{ZnSO}_{4} \longrightarrow \mathrm{Zn}^{++}+\mathrm{SO}_{4}^{-2}$
$\mathrm{Zn}^{++} \approx \mathrm{Cu}^{++}$
$\mathrm{Cu}^{+2} \longrightarrow 3 \mathrm{d}^{9}-1$ unpaired $\mathrm{e}^{-}$
$\therefore$ paramagnetic in nature.

Asked in: JEE-TOPICTESTS-CHEMISTRY

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