The correct option is A Both A and R are true and R is the correct
explanation to A
Ethyl alcohol reacts with alumina at 2600C and gives di ethyl ether.Ethyl alcohol undergoes dehydration.
Hence, both A and R are true and R is the correct explanation to A
2C2H5−OHAl2O3,260oC−−−−−−−−→dehydrationC2H5−O−C2H5+H2O