Which of the following is correctly matched w | vedclass

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Question

(A) Let's analyze each option:$A)$ Heat of combustion is inversely proportional to the stability of the alkene. More substituted alkenes are more stab

Vedclass · Accepted Answer

$2,3	ext{-dimethylbut-2-ene} < 2	ext{-methylbut-2-ene} < 	ext{but-2-ene}$ (Heat of combustion)

Vedclass · Answer

(A) Let's analyze each option:$A)$ Heat of combustion is inversely proportional to the stability of the alkene. More substituted alkenes are more stable and have lower heat of combustion. The order should be: $ ext{but-2-ene} > 2 ext{-methylbut-2-ene} > 2,3 ext{-dimethylbut-2-ene}$. Thus,the given order is correct.$B)$ Boiling point increases with molecular weight and decreases with branching. $ ext{Methanol} (CH_3OH)$ has the lowest boiling point. Between $ ext{butan-1-ol}$ and $ ext{butan-2-ol}$,$ ext{butan-1-ol}$ has a higher boiling point due to less branching. The correct order is: $ ext{Methanol} $C)$ The stability of the carbocation is increased by the $+M$ effect of the oxygen atom. The closer the oxygen atom is to the positive charge,the more stable the cation. The correct order is: $4 ext{-oxocyclohexyl cation} $D)$ Bond length of $C=C$ increases as the double bond character decreases due to resonance. In $CH_3O-CH=CH_2$,the lone pair on oxygen participates in resonance,giving the $C=C$ bond more single bond character,thus increasing its length. The correct order is: $CH_2=CH_2 < CH_3-CH=CH_2 < CH_3O-CH=CH_2$.

Which of the following is correctly matched with their property?

Similar Questions

Which of the following statements are $TRUE$?
$(I)$ Inductive effect operates through the $\sigma$ bond
$(II)$ Resonance effect operates through the $\pi$ bond
$(III)$ Inductive effects operate through the $\pi$ bond
$(IV)$ Resonance effect operates through the $\sigma$ bond

The most stable carbocation among the following is:

In which of the following molecules do all the effects namely inductive,mesomeric and hyperconjugation operate?

The functional group that shows negative resonance effect ($-R$ effect) is:

Explain why alkyl groups act as electron donors when attached to a $\pi$ system.

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