Question

The correct IUPAC name of the following strucutre is :

• A. 1,1-cyclopentylpentane
• B. 1-cyclopentylhexane
• C. 1-hexylcyclopentane
• D. 1-cyclohexylpentane

Answer 1

The correct option is B 1-cyclopentylhexane

Determing the parent chain :
When ,
Number of ‘C’ atoms in ring < Number of ‘C’ atoms in the open chain
then,
Ring - Substituent
Open Chain - Parent Chain
Here there are 5 C atoms in ring and 6 C atoms in open chain as shown :


So, the correct IUPAC name of the above structure is 1-cyclopentylhexane