Which of the following sigma-bonds participat | vedclass

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(B) Hyperconjugation occurs due to the interaction of $\sigma$-electrons of a $C-H$ bond attached to an $\alpha$-carbon (a carbon atom directly attach

Vedclass · Accepted Answer

$I$ and $V$

Vedclass · Answer

(B) Hyperconjugation occurs due to the interaction of $\sigma$-electrons of a $C-H$ bond attached to an $\alpha$-carbon (a carbon atom directly attached to an $sp^2$ hybridized carbon atom) with the adjacent empty or partially filled $p$-orbital or $\pi$-orbital.In the given structure,the $\alpha$-carbons are the carbons adjacent to the $C=C$ double bond.Bond $I$ is a $C-H$ bond on an $\alpha$-carbon.Bond $V$ is a $C-H$ bond on an $\alpha$-carbon.Bonds $II$,$III$,and $IV$ are not $C-H$ bonds on $\alpha$-carbons.Therefore,the $\sigma$-bonds $I$ and $V$ participate in hyperconjugation.

Column $-I$	Column $-II$
$(i)$ $C_6H_5NH_2$	$(p)$ $-R$ effect
$(ii)$ $C_6H_5OH$	$(q)$ $+R$ effect
$(iii)$ $C_6H_5NO_2$	$(r)$ $+I$ effect
$(iv)$ $CH_3CH_2Cl$	$(s)$ $-I$ effect

Which of the following $\sigma$-bonds participate in hyperconjugation?

Similar Questions

The most stable canonical structure among the given structures is:

The correct order of the electron-donating or withdrawing effect (inductive/mesomeric effect) for the groups $-NH_2, -OCH_3, -C_6H_5$,and $-NO_2$ is:

What is the difference between the mesomeric effect and the resonance effect?

Match column $-I$ and column $-II$ with the correct electronic effect relation:

Column $-I$ Column $-II$

$(i)$ $C_6H_5NH_2$ $(p)$ $-R$ effect

$(ii)$ $C_6H_5OH$ $(q)$ $+R$ effect

$(iii)$ $C_6H_5NO_2$ $(r)$ $+I$ effect

$(iv)$ $CH_3CH_2Cl$ $(s)$ $-I$ effect

Which of the following is the most unstable carbocation?

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