Login/Sign Up
Home » (a) What is meant by catenation? Name two elements that exhibit the property of catenation. (b) Write the names and structural formulae of all the possible isomers of hexane.
(a) What is meant by catenation? Name two elements that exhibit the property of catenation. (b) Write the names and structural formulae of all the possible isomers of hexane.
Carbon and its Compounds | CBSE | Chemistry | Class 10 | Exercise 1 | Lakhmir Singh
(a) What is meant by catenation? Name two elements that exhibit the property of catenation. (b) Write the names and structural formulae of all the possible isomers of hexane.

Solution:

(a) Catenation is the property of carbon atoms self-combining to create a lengthy chain. Catenation is a characteristic that exists between carbon and silicon.

(b) Hexane has five isomers:

  • Hexane, CH3CH2CH2CH2CH2CH3, a straight chain of six carbon atoms.
  • 2-Methylpentane (Isohexane), CH3CH(CH3)CH2CH2CH3, a five-carbon chain with one methyl branch on the second.
  • 3-Methylpentane, CH3CH2CH(CH3)CH2CH3, a five-carbon chain with one methyl branch on the third.
  • 2,3-Dimethylbutane, CH3CH(CH3)CH(CH3)CH3, a four-carbon chain with one methyl branch on the second and third.
  • 2,2-Dimethylbutane (neohexane), CH3C(CH3)2CH2CH3, a four-carbon chain with two methyl branches on the second.
i

More Material