- AElimination
- BAddition
- ✓Substitution
- DDehydrohalogenation
The primary alkyl halides undergo nucleophilic substitution reaction by $S _{ N } 2$ mechanism, while tertiary alkyl halides follow $S _{ N } 1$ mechanism.
$R - X + KOH \rightarrow R - OH + KX$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.

$Ca{C_2} + 2{H_2}O \to Ca{(OH)_2} + {C_2}{H_2}$
${C_2}{H_2} + {H_2} \to {C_2}{H_4}$
$n({C_2}{H_4}) \to {( - C{H_2} - C{H_2} - )_n}$
The amount of polyethylene obtained from $64.1\, kg$ $Ca{C_2}$ is......$kg$
$SO{{_{3}^{2-}}_{\left( aq. \right)}}+{{H}_{2}}{{O}_{\left( l \right)}}\to SO{{_{4}^{2-}}_{\left( aq. \right)}}+2{{H}^{+}}_{\left( aq. \right)}+2{{H}^{+}}_{\left( aq. \right)}+2{{e}^{-}}$
If the oxidation number of metal in the salt was $+3$, what would be the new oxidation number of metal?