Note: Consider structures I to VII and answer the question

Identify the pairs of compounds which are functional group isomers.
 

 

Note: Consider structures I to VII and answer the question

Identify the pairs of compounds that represents position isomerism.

Note: Consider structures I to VII and answer the question

Identify the pairs of compounds that represents chain isomerism.

Compounds with same molecular formula but differing In their structures are said to be structural isomers. What type of structural isomerism is shown by

${\mathrm{CH}}_3-\mathrm{S}-{\mathrm{CH}}_2-{\mathrm{CH}}_2-{\mathrm{CH}}_3$ and 

Which of the following selected chains is correct to name the given compound according to IUPAC system.