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Resonance

Heat of hydro...

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Heat of hydrogenation of cyclohexene is xand that of benzene is y . Resonance energy will be ? n nt1) 3x-y n nt2) y - 3x

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Q. The heat of hydrogenation of one double bond in cyclohexene is 28.6kcal

{m o l}^{- 1}

and the heat of hydrogenation of benzene to cyclohexane is 50kcal

{m o l}^{- 1}

. What will be the resonance stabilization energy of benzene?

Q. Heat of hydrogenation of cyclohexene is

x_{1}

and that of benzene is

x_{2}

. Hence, resonance energy is:

Q. The enthalpy of hydrogenation of cyclohexene is

- 119.5 k J {m o l}^{- 1}

. If resonance energy of benzene is

- 150.4 k J {m o l}^{- 1}

, its enthalpy of hydrogenation would be:

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