MCQ
Alkyl halide can be converted into alkene by
- ANucleophilic substitution reaction
- ✓Elimination reaction
- CBoth nucleophilic substitution and elimination reaction
- DRearrangement
$R-C{{H}_{2}}-C{{H}_{2}}-X\xrightarrow{\text{dehydro halogenation}}R-CH=C{{H}_{2}}$
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Assertion $(A):$ The ionic radii of $O ^{2-}$ and $Mg ^{2+}$ are same.
Reason $( R )$ : Both $O ^{2-}$ and $Mg ^{2+}$ are isoelectronic species.
In the light of the above statements, choose the correct answer from the options given below