Why are alkenes more reactive than alkanes ?

Give reasons for i] alkanes are said to be saturated organic compounds ii] alkenes are known as olefins iii) alkenes are more reactive than alkanes iv) ethanoic acid is known as an aliphatic monocarboxylic acid.

(i) Why are haloalkanes more reactive towards nucleophilic substitution reaction than haloarenes ? (ii) Which one of the following two substance undergoes S_(N)1 reaction faster and why ?

Why interhalogens are more reactive than halogens ?

Why is ICI more reactive than I_2 ?

Statement-1: Alkynes are more reactive than alkene towards HBr and Statement-2: Alkynes have higher degree of unsaturation than alkenes.

Why is acetaldehyde more reactive than acetone towards nucleophilic addition reactions ?

Why is acetaldehyde more reactive than acetone towards nucleophilic addition reactions ?

Identify the incorrect statement // statement : (i) Alkynes are more reactive than alkenes towards electrophilic addiction reaction (ii) Alkynes are less reactive than alkenes towards electrophilic addiction reaction (iii) Alkynes decolourise Br_(2) water (iv) Addition of HBr to alkenes in presence of peroxide proceeds via Markownikoff's rule

Explain as to why haloarenes are much less reactive than halo-alkanes towards nucleophilic substitution reactions.

Acid halides are more reactive than acid amides towards the hydrolysis.