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Solution


Q.

The number of isomers of pentane is:
1 2  
2 3  
3 4  
4 5  

Ans.

(3)

Isomerism is a phenomenon in which two or more compounds have the same chemical formula but possess different structural formulae. Pentane is an organic compound and an alkane with molecular formula C5H12. There are five carbons in its structure which can be arranged in three different ways to form 3 different structural isomers of pentane. These are n-pentane, iso-pentane and neo-pentane.