Answer
IUPAC name of:
$CH_{3}CH(CH_{3})CH_{2}CH_{2}CH_{3}$ : 2-methylpentane ($C_{6}H_{14}$).
Its constitution isomer is: 2,3-dimethylbutane $CH_{3}CH(CH_{3})CH(CH_{3})CH_{3}$
Work Step by Step
Structure is in the attached document
You can help us out by revising, improving and updating this answer.
Update this answerAfter you claim an answer you’ll have 24 hours to send in a draft. An editor will review the submission and either publish your submission or provide feedback.