Molecule in which the distance between the two adjacent carbon atoms is largest is\

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Professor PC Thomas Classes · Answer

(a) : The size of $s p$ orbital is shortest and that of $s p^{3}$ is longest $\left(s p^{3}>s p^{2}>s pight.$ - order of decreasing size).\ The hybridisation involved in ethane is $s p^{3}$, ethene is $s p^{2}$ and ethyne is $s p$.\ The C -C bond length is longest ( $1.54 \AA$ ), $\mathrm{C}=\mathrm{C}$ bond length is $1.34 \AA$. In benzene $\mathrm{C}-\mathrm{C}$ bond length is $1.39 \AA$.\