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Q.
In the compound $CH_{2}=CH-CH_{2}-CH_{2}-C \equiv CH$ the $C_{2}-C_{3}$ bond is of
Organic Chemistry – Some Basic Principles and Techniques
Solution:
The correct numbering of parent chain is
$\overset{1}{C}H_{2}=\overset{2}{C}H—\overset{3}{C}H_{2}—\overset{4}{C}H_{2}—\overset{5}{C} \equiv \overset{6}{C}H$
Double and triple bond are equidistant from terminals, numbering is done in alphabetical order, giving lower number to ene
Hence, $C_{2}-C_{3}$ are $sp^{2}-sp^{3}$ hybridised