Arrange the following compounds in increasing order of their boiling points CH 3 CHO , CH 3 CH 2 OH , CH 3 OCH 3, CH 3 CH 2 CH 3

Question

Arrange the following compounds in increasing order of their boiling points CH 3 CHO , CH 3 CH 2 OH , CH 3 OCH 3, CH 3 CH 2 CH 3 (A) CH 3 CH 2 CH 3< CH 3 CHO > CH 3 OCH 3< CH 3 CH 2 OH (B) CH 3 CH 2 CH 3< CH 3 CHO > CH 3 OCH 3< CH 3 CH 2 OH (C) CH 3 CH 2 CH 3> CH 3 CHO > CH 3 OCH 3< CH 3 CH 2 OH (D) CH 3 CH 2 OH < CH 3 CHO < CH 3 OCH 3< CH 3 CH 2 CH 3

Tardigrade Admin · Accepted Answer

CH 3 CH 2 OH has the highest boiling point among the given due to H-bonding. CH 3 OCH 3 has higher molecular weight than CH 3 CH 2 CH 3 and thus, has the higher boiling point CH 3 CHO. CH 3 CHO has higher boiling point than alkane due to dipole-dipole interaction. Thus, the correct order of boiling point is CH 3 CH 2 CH 3< CH 3 OCH 3< CH 3 CHO < CH 3 CH 2 OH

Q. Arrange the following compounds in increasing order of their boiling points $C H_{3} C H O, C H_{3} C H_{2} O H, C H_{3} OC H_{3}, C H_{3} C H_{2} C H_{3}$

$C H_{3} C H_{2} C H_{3} < C H_{3} C H O > C H_{3} OC H_{3} < C H_{3} C H_{2} O H$

$C H_{3} C H_{2} C H_{3} < C H_{3} C H O > C H_{3} OC H_{3} < C H_{3} C H_{2} O H$

$C H_{3} C H_{2} C H_{3} > C H_{3} C H O > C H_{3} OC H_{3} < C H_{3} C H_{2} O H$

$C H_{3} C H_{2} O H < C H_{3} C H O < C H_{3} OC H_{3} < C H_{3} C H_{2} C H_{3}$

Q. Arrange the following compounds in increasing order of their boiling points CH3​CHO,CH3​CH2​OH,CH3​OCH3​,CH3​CH2​CH3​

CH3​CH2​CH3​<CH3​CHO>CH3​OCH3​<CH3​CH2​OH

CH3​CH2​CH3​<CH3​CHO>CH3​OCH3​<CH3​CH2​OH

CH3​CH2​CH3​>CH3​CHO>CH3​OCH3​<CH3​CH2​OH

CH3​CH2​OH<CH3​CHO<CH3​OCH3​<CH3​CH2​CH3​

Q. Arrange the following compounds in increasing order of their boiling points $C H_{3} C H O, C H_{3} C H_{2} O H, C H_{3} OC H_{3}, C H_{3} C H_{2} C H_{3}$

$C H_{3} C H_{2} C H_{3} < C H_{3} C H O > C H_{3} OC H_{3} < C H_{3} C H_{2} O H$

$C H_{3} C H_{2} C H_{3} < C H_{3} C H O > C H_{3} OC H_{3} < C H_{3} C H_{2} O H$

$C H_{3} C H_{2} C H_{3} > C H_{3} C H O > C H_{3} OC H_{3} < C H_{3} C H_{2} O H$

$C H_{3} C H_{2} O H < C H_{3} C H O < C H_{3} OC H_{3} < C H_{3} C H_{2} C H_{3}$