$\begin{array}{1 1} \text{(a) Ether is used as motor fuel along with petrol.} \\ \text{(b) (i) Dimethyl ether is used as refrigerant and as a solvent at low temperature. (ii) Diethyl Ether is used as an anesthesia in surgery} \\ \text{(c) Ether is found in crude oil and is a major part of gasoline. It's used to make plastics, resins, synthetic fibers,} \\ \text{(d) Ether is used as solvent for extraction of fats and oils}\end{array} $
