MCQ
A distinctive and characteristic functional group of fats is
- ✓An ester group
- BA peptide group
- CA ketonic group
- DAn alcoholic group
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reagents ' $X$ ' and ' $Y$ ' respectively are:

Statement $I:$ On heating with $KHSO _{4}$, glycerol is dehydrated and acrolein is formed.
Statement $II:$ Acrolein has fruity odour and can be used to test glycerol's presence.Choose the correct option.