Which of the following has the highest heat o | vedclass

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(B) The heat of hydrogenation $(HOH)$ is directly proportional to the number of $\pi-$bonds present in the molecule. $1$. $1,4-$cyclohexadiene has $2$

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$1-$methylenecyclohex$-2-$ene

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(B) The heat of hydrogenation $(HOH)$ is directly proportional to the number of $\pi-$bonds present in the molecule. $1$. $1,4-$cyclohexadiene has $2$ $\pi-$bonds. $2$. $1-$methylenecyclohex$-2-$ene has $3$ $\pi-$bonds. $3$. $1,3-$cyclohexadiene has $2$ $\pi-$bonds. $4$. Methylenecyclohexane has $1$ $\pi-$bond. Since $1-$methylenecyclohex$-2-$ene has the highest number of $\pi-$bonds $(3)$,it will have the highest heat of hydrogenation.

Which of the following has the highest heat of hydrogenation?

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