MCQ
Glycerol is purified by:
- AVacuum distillation.
- BSimple distillation.
- CSteam distillation.
- DFractional distillation.
Explanation:
Because glycerol decomposes at its normal boiling point.
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Statement $I :$ The presence of weaker $\pi$ - bonds make alkenes less stable than alkanes.
Statement $II :$ The strength of the double bond is greater than that of carbon-carbon single bond.
In the light of the above statements, choose the correct answer from the options given below.