Which of the following are molecular formula of hexene and hexyne respectively?

$C_{6} H_{12}$ , $C_{6} H_{10}$

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$C_{6} H_{10}$ , $C_{6} H_{12}$

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$C_{6} H_{12}$ , $C_{6} H_{14}$

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$C_{6} H_{18}$ , $C_{6} H_{4}$

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Solution

The correct option is A
$C_{6} H_{12}$ , $C_{6} H_{10}$

$∙$ The general molecular formula for alkenes is $C_{n} H_{2 n}$ . Put $n = 6$ in the general formula. The compound obtained is $C_{6} H_{12}$ . Hence, $C_{6} H_{12}$ is an alkene.
$∙$ The general molecular formula for alkynes is $C_{n} H_{2 n - 2}$ . Put $n = 6$ in the general formula. The compound obtained is $C_{6} H_{10}$ . Hence, $C_{6} H_{10}$ is an alkyne.

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Similar questions

C_{12} H_{26} \to C_{6} H_{12} + C_{6} H_{14}

C_{12} H_{26} ⟶ C_{6} H_{12} + C_{6} H_{14}

C_{6} H_{12} O_{6}

25^{o} C

H_{2}

(C_{6} H_{12})

(C_{6} H_{10})

- 241, - 3920

- 3800

k J / m o l

{Δ H}_{f}^{o}

C_{6} H_{12} O_{6} (s)

Δ H_{c o m b .}

C_{6} H_{12} O_{6} (s) = - 2816 k J {m o l}^{- 1}

{Δ H}_{f}^{o}

{C O}_{2} (g) = - 393.5 J {m o l}^{- 1}

{Δ H}_{f (H_{2} O)}^{o} = - 285.9 k J {m o l}^{- 1}

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