MCQ
Camphor is often used in molecular mass determination because
- ✓It is volatile
- BIt is solvent for organic substances
- CIt is readily available
- DIt has a very high cryoscopic constant
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$(II)$ $1,3-$dihydroxy benzene
$(III)$ $1,4-$dihydroxy benzene
$(IV)$ Hydroxy benzene
The increasing order of boiling points of above mentioned alcohols is
$MnO_4^ - + 5F{e^{2 + }} + 8{H^ + } \to M{n^{2 + }} + 5F{e^{3 + }} + 4{H_2}O$,
here $10\, ml$ of $0.1\, M$ $KMn{O_4}$ is equivalent to