Give the product of reaction of ethyl alcohol with conc. `H_(2)SO_(4)` at (a) `0^(@)C` (b) room temperature (c) `130^(@)C` (d) `180^(@)C`.

Explanation

(a) `C_(2)H_(5)underset(..)overset(..)(O)H+H_(2)SO_(4) overset(0^(@)C)(rarr) underset("Ethyloxonium hydrogensulphate")((C_(2)H_(5)overset(o+)underset(H)underset(|)(O)H)HSO_(4)^(-))`
(b) `C_(2)H_(5)OH+H_(2)SO_(4) underset("temperature")overset("Room")(rarr) underset("Ethylhydrogensulphate")(C_(2)H_(5)HSO_(4)+H_(2)O)`