Which of the following compounds has the highest boiling point ?

Options

A. `CH_(3)CH_(2)CH_(2)Cl`
B. `CH_(3)CH_(2)CH_(2)CH_(2)Cl`
C. `CH_(3)CH(CH_(3))CH_(2)Cl`
D. `(CH_(3))_(3)C"Cl`

Answer

b

Explanation

For the same halogen boiling point of alkyl halide decreases as the size of the alkly gropu decreases.
For isomeric alkyl halides boiling point decreases as branching increases. So the decreasing order of boilng point is
`CH_(3)CH_(2)CH_(2)CH_(2)CI gt CH_(3)CH_(2)CH_(2)CI gt CH_(3) CH(CH_(3))CH_(2)CI gt (CH_(3)) C CI`