Question

What are hybridization states of each carbon atom in the following compounds?
$CH_2=C=O,\, CH_3CH=CH_2$,$(CH_3)_2CO, \,CH_2=CHCN, \,C_6H_6.$

Answer 1

**(i) **
C-1 is sp2 hybridised.
C-2 is sp hybridized.

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(ii)
C-1 is sp3 hybridised.
C-2 is sp2 hybridized.
C-3 is sp2 hybridised.

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**(iii) **
C-1 and C-3 are sp3 hybridized.
C-2 is sp2 hybridized.

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(iv)
C-1 is sp2 hybridised.
C-2 is sp2 hybridized.
C-3 is sp hybridized.

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(v) C6H6
All the 6 carbon atoms in benzene are sp2 hybridized.