[hline" 25.Give reasons: "],[,[" (i) Racemic mixture is optically inactive."],[" (ii) The presence of nitro group "(-NO_(2))" at "o/p" positions increases the reactivity of haloarenes "],[" towards nucleophilic substitution reactions."]],[hline]

Give reasons: (a) n-Butyl bromide has higher boiling point than t-butyl bromide. (b) Racemic mixture is optically inactive. (c) The presence of nitro group ( -NO_(2) ) at op positions increases the reactivity of haloarenes towards nucleophilic substitution reactions.

Give reasons: (a) n-Butyl bromide has higher boiling point than t-butyl bromide. (b) Racemic mixture is optically inactive. (c) The presence of nitro group ( -NO_(2) ) at o & p positions increases the reactivity of haloarenes towards nucleophilic substitution reactions.

The presence of electron withdrawing group increases the reactivity of haloarenes towards nuncleophilic substitution reaction. Explain.

Haloarenes are much less reactive than haloalkanes towards nucleophilic substitution reaction. Give reason.

Give three reasons why aryl halides are less reactive towards nucleophilic substitution reaction?

Aryl halides are less reactive towards nucleophilic substitution reaction. Give four reasons.

What is the effect of electron withdrawing group at meta position on the reactivity of haloarenes towards substitution reaction?