MCQ
Which shows the least dipole moment
- ✓$CC{l_4}$
- B$CHC{l_3}$
- C$C{H_3}C{H_2}OH$
- D$C{H_3}COC{H_3}$
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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