Define :

(i) Electrolysis

(ii) Molar volume

(iii) Halogenation

(iv) Catenation

(v) Electronegativity

(i) Electrolysis — It is the process of decomposition of a chemical compound [electrolyte] in the aqueous or fused [molten] state by the passage of direct electric current resulting in discharge of ions as neutral atoms at the respective electrodes.

(ii) Molar volume — It is the volume occupied by 1 mole of a gas at STP.

(iii) Halogenation — Halogenation refers to a chemical reaction in which a halogen element, such as chlorine, bromine, or iodine, is added to a molecule or compound.

(iv) Catenation — Carbon atoms possess a unique property to link themselves together to form very long chains of different sizes which may be straight, branched or cyclic and this property is called catenation.

(v) Electronegativity — The tendency of an atom in a molecule to attract the shared pair of electrons towards itself is called its electronegativity.