The number of different chain isomers for is .

Question

The number of different chain isomers for  is .

Canvas Classes · Accepted Answer

Chain Isomerism in Heptane ():

Chain isomers have the same molecular formula but different carbon chain arrangements (skeletal structures).

All possible structural isomers of :

![image](https://pub-2ff04ffcdd1247b6b8d19c44c1dfe553.r2.dev/questions/5991adb4-5532-4e47-a120-3e2eb3582f80/image/1772893312279MultiColor20260307195146341519000cf070db4.webp)
Total structural isomers = 9

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