Question

What type(s) of isomerism can be observed in the molecule C6H12? Draw the structures of any isomers that can be formed and explain the type(s) of isomerism present in each.

Answer 1

In the molecule C6H12, we can observe structural isomerism, specifically chain isomerism and positional isomerism. Here are some examples of isomers for C6H12:1. Hex-1-ene  Chain isomer    H2C=CH-CH2-CH2-CH2-CH32. Hex-2-ene  Chain isomer    CH3-CH=CH-CH2-CH2-CH33. 3-Methylpent-1-ene  Positional isomer    CH3-CH=CH-CH CH3 -CH2-CH34. 2-Methylpent-2-ene  Positional isomer    CH3-C CH3 =CH-CH2-CH2-CH35. Cyclohexane  Ring isomer    -CH2-CH2-CH2-CH2-CH2-CH2-6. Methylcyclopentane  Ring isomer    CH3    |   -CH2-CH2-CH2-CH2-CH2-In these examples, chain isomerism occurs when the carbon atoms are connected in different ways, forming different carbon chains. For example, hex-1-ene and hex-2-ene have different carbon chain structures.Positional isomerism occurs when the position of the functional group  in this case, the double bond  changes within the same carbon chain. For example, 3-methylpent-1-ene and 2-methylpent-2-ene have the same carbon chain but different positions for the double bond.Ring isomerism occurs when the carbon atoms are connected in a ring structure, such as in cyclohexane and methylcyclopentane.