MCQ
How many different stereoisomers are possible for the given molecule?


- A3
- B1
- C2
- ✓4


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$STATEMENT$-$2$: In water, orthoboric acid acts as a proton donor.
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.