MCQ
$2-$ Bromobutane on heating with alcoholic $KOH$ forms
- A$\alpha-$ Butylene only
- B$\beta-$ Butylene only
- C$20\%$ of $\beta-$ Butylene $+\, 80\%$ of $\alpha-$ Butylene
- ✓$80\% \,\beta-$ Butylene $+ 20\%\, \alpha-$ Butylene
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$A$. Glycerol is purified by vacuum distillation because it decomposes at its normal boiling point.
$B$. Aniline can be purified by steam distillation as aniline is miscible in water.
$C$. Ethanol can be separated from ethanol water mixture by azeotropic distillation because it forms azeotrope.
$D$. An organic compound is pure, if mixed $M.P$. is remained same.
Choose the most appropriate answer from the options given below :