MCQ
The charge (in coulomb) on $Cu ^{2+}$ ion is :
- A96500
- B57900
- C$1.6 \times 10^{-19}$
- ✓$3.2 \times 10^{-19}$
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Statement $(I)$ : Fusion of $\mathrm{MnO}_2$ with $\mathrm{KOH}$ and an oxidising agent gives dark green $\mathrm{K}_2 \mathrm{MnO}_4$.
Statement $(II)$ : Manganate ion on electrolytic oxidation in alkaline medium gives permanganate ion.
In the light of the above statements, choose the correct answer from the options given below.
$STATEMENT$-$2$: $o$-Hydroxybenzoic acid has intramolecular hydrogen bonding.
