Arrange the following compounds in decreasing order of their boiling points. (i) CH3Br (ii) CH3CH2Br (iii) CH3CH2CH2Br (iv) CH3CH2CH2CH2Br

Question

Arrange the following compounds in decreasing order of their boiling points. (i) CH3Br (ii) CH3CH2Br (iii) CH3CH2CH2Br (iv) CH3CH2CH2CH2Br (A) (i) > (ii) > (iii) > (iv) (B) (iv) > (iii) > (ii) > (i) (C) (i) > (iii) > (ii) > (iv) (D) (iii) > (iv) > (i) > (ii)

Tardigrade Admin · Accepted Answer

The boiling point of haloalkanes decreases with increase in branching. For the alkyl/aryl group, the boiling points of alkyl halides decrease in order

R I > RB r > RCl > RF

.
This is because with the increase in size and mass of halogen atom, the magnitude

Q. Arrange the following compounds in decreasing order of their boiling points.
(i) $C H_{3} B r$
(ii) $C H_{3} C H_{2} B r$
(iii) $C H_{3} C H_{2} C H_{2} B r$
(iv) $C H_{3} C H_{2} C H_{2} C H_{2} B r$

$(i) > (ii) > (iii) > (i v)$

$(i v) > (iii) > (ii) > (i)$

$(i) > (iii) > (ii) > (i v)$

$(iii) > (i v) > (i) > (ii)$

The boiling point of haloalkanes decreases with increase in branching. For the alkyl/aryl group, the boiling points of alkyl halides decrease in order $R I > RB r > RCl > RF$ .
This is because with the increase in size and mass of halogen atom, the magnitude

Q. Arrange the following compounds in decreasing order of their boiling points. (i) CH3​Br (ii) CH3​CH2​Br (iii) CH3​CH2​CH2​Br (iv) CH3​CH2​CH2​CH2​Br

(i)>(ii)>(iii)>(iv)

(iv)>(iii)>(ii)>(i)

(i)>(iii)>(ii)>(iv)

(iii)>(iv)>(i)>(ii)