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sp^2 hybridisation

Identify the ...

Question

Identify the hydrocarbon in which carbon atom is ${sp}^{2}$ hybridized.

A

Methane

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B

Ethane

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C

Ethene

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D

Ethyne

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Solution

The correct option is C Ethene
${sp}^{2}$ hybridisation is observed when one s and two p orbitals intermix to form three orbitals having identical energy and shape. The newly formed orbitals are called ${sp}^{2}$ hybridised orbitals. For example, each carbon atom in ethene is ${sp}^{2}$ hybridised.

The table given below shows the hybridisation of carbon atom in different hydrocarbons.

$\begin{matrix} M o l e c u l a r F o r m u l a & C o m p o u n d & H y b r i d i s a t i o n C H_{4} & M e t h a n e & s p^{3} C_{2} H_{6} & E t h a n e & s p^{3} C_{2} H_{4} & E t h e n e & s p^{2} C_{2} H_{2} & E t h y n e & s p \end{matrix}$

Hence, amongst the given options each carbon atom in ethene is ${sp}^{2}$ hybridised.

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