MCQ
Nitrates of all metals are
- AUnstable
- ✓Stable
- CColoured
- DSoluble
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$A$. $\mathrm{Ti}^{3+}$ $B$. $\mathrm{Cr}^{2+}$ $C$. $\mathrm{Mn}^{2+}$ $D$.$\mathrm{Fe}^{2+}$ $E$. $\mathrm{Sc}^{3+}$
Choose the most appropriate answer from the options given below.

$[A_0]$ $||$ $0.1$ $||$ $0.025$
$t_{1/2}(s)$ $||$ $100$ $||$ $50$
Which of the following option $(s)$ is / are correct
