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Question

Draw the structures of all structural isomers of heptane and make pairs of positional isomers

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Solution

Dear Student,
Heptane is a saturated 7 C compound , having chain isomers.
The isomers are
CH3-CH2-CH2-CH​2-CH2-CH2-CH3 n-heptane

CH3-CH(CH)3-CH2-CH2-CH2-CH3 2-methyl hexane
Similarly you can make structures for 3-methyl and 4-methyl heptane.

CH3-C(CH3)2- CH2-CH2-CH3 2,2 -dimethyl pentane
similalry you can make structures for 3,3 -demethyl and 4,4- dimethyl
The other isomers will be 2,3 -dimethyl heptane and
3,4 dimethyl heptane
2,4 dimethyl hepatne
Regards!

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