Question

Write the structural formula of the isomers of the following compound and indicate the type of isomerism involved, (i) 1-nitrobutane, (ii) nitroethane.

Answer 1

(i) (a) 1-nitrobutane and 2-methyl-1-nitropropane are- chain isomers. These two isomers differ in the length of carbon chain and hence exhibit chain isomerism.

(b) 1-nitrobutane, 2-nitrobutane and 2-methyl 2-nitropropane are position isomers. They differ in the position of the functional group and hence exhibit positfon isomerism.

(c) 1-nitrobutane and butyl nitrite are functional isomers. They differ in the nature of the functional group and hence functional isomerism.

(ii) Nitromethane and methyl nitrite exhibit tautomerism.