Ahydrocarbon of pentane has two isomeric forms—n-pentane and iso-pentane. the molecular formula of the n-pentane is c5h12. predict the molecular formula of the iso-pentane.

A hydrocarbon of pentane has three isomeric forms:

CH₃-CH₂-CH₂-CH₂-CH₃  n-pentane (normal pentane) (C₅H₁₂)

CH₃-CH-CH₂-CH₃   iso-pentane (C₅H₁₂)
         I
        CH₃

         CH₃
         I
CH₃-C-CH₃    neo-pentane (C₅H₁₂)
         I
        CH₃

Isomers have the same qualitative and quantitative composition, but different structure.

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