Question

Why aliphatic compounds having cn, cho, cooh, cocl, cor conh2 groups do not show position isomers?

Answer 1

Here is your answer ⤵⤵⤵

All the functional groups mentioned have 3 bonds to the carbon atom, which means that only one more is available for bonding. That means that these functional groups can only be side groups of a long carbon main chain.

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Answer 2

who said they don't show position isomers.

functional group hone se koi fark nhi parta hai, alkyl (-R) group toh position isomer show krega hi.