MCQ
The unit of molality is
- AMole per litre
- ✓Mole per kilogram
- CPer mole per litre
- DMole litre
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$STATEMENT-2$: The $\mathrm{Fe}$ in $\left[\mathrm{Fe}\left(\mathrm{H}_2 \mathrm{O}\right)_5 \mathrm{NO}_3 \mathrm{SO}_4\right.$ has three unpaired electrons.