Which of the following forms 2-Methylbut-2-en | vedclass

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(D) The dehydration of alcohols with concentrated $H_2SO_4$ follows $E1$ mechanism,which involves the formation of a carbocation intermediate.For $2-$

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$2-$Methylbutan$-2-$ol

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(D) The dehydration of alcohols with concentrated $H_2SO_4$ follows $E1$ mechanism,which involves the formation of a carbocation intermediate.For $2-$Methylbutan$-2-$ol $(CH_3-CH_2-C(CH_3)(OH)-CH_3)$,the protonation of the $-OH$ group followed by the loss of water molecule generates a tertiary carbocation: $CH_3-CH_2-C^+(CH_3)-CH_3$.This carbocation can lose a proton from the adjacent carbon atoms to form alkenes.Loss of a proton from the $C-3$ position yields $2-$Methylbut$-2-$ene $(CH_3-CH=C(CH_3)-CH_3)$,which is the most stable alkene according to Saytzeff's rule.

Which of the following forms $2-$Methylbut$-2-$ene on heating with concentrated sulphuric acid?

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