Question

Chloride ion to chlorine molecule
Oxidation or reduction
According to oilrig oxidation is loss and reduction is gain pls explain

Answer 1

Whenever you face difficulty in redox, do remember these points:-

(i) loss of electron (oxidation)

(ii)addition of electronegative element (oxidation)

{electronegative element will pull electron towards itself, it's also somewhat removal of electron}.

Oxygen is an electronegative element so we say that addition of oxygen is oxidation.

#The opposite is true for reduction.

i.e. addition of hydrogen (electropositive element) is reduction

gain of electron is reduction.

Chloride ion has 1 electron extra and chlorine molecule has no extra electron, hence, chloride to chlorine is loss of electron (oxidation).

Hope it helped.

For more explanation do comment.