Methane is a saturated hydrocarbon while ethene and ethyne are unsaturated hydrocarbons.
Distinguish between the saturated hydrocarbon ethane and unsaturated hydrocarbon ethene.
From the following organic compounds given below, choose one compound in each case that relates to the description [a] to [d]:
[Ethyne, ethanol, acetic acid, ethene, methane]
(a) An unsaturated hydrocarbon used for welding purposes.
(b) An organic compound whose functional group is carboxyl.
(c) A hydrocarbon which on catalytic hydrogenation gives a saturated hydrocarbon.
(d) An organic compound is used as a thermometric liquid.