MCQ
C- H bond type in benzene is:
- A$\sigma$ sp−s
- B$\sigma$ sp2−s
- C$\sigma$ sp3−s
- D$\sigma$ p−p
Explanation:
In benzene molecule, six carbon atoms are in sp2 hybridization and hydrogen atoms have pure 's' orbitals. Overlap is sp2−s overlap with formation of a sigma bond.
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Statement $I$ : The metallic radius of $\mathrm{Na}$ is $1.86 \mathrm{~A}^{\circ}$ and the ionic radius of $\mathrm{Na}^{+}$is lesser than $1.86 \mathrm{~A}^{\circ}$.
Statement $II$ : Ions are always smaller in size than the corresponding elements.
In the light of the above statements, choose the correct answer from the options given below :
