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Q.

A = CH3CH2CH2CH2OH

B = CH3 - CH2 - O - CH2 - CH3

C = A = CH3CH(OH)CH2CH3

D = (CH3)3COH

Correct decreasing order of boiling points in A, B, C and D is

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a

D > C > B > A

b

A > B > C > D

c

A > C > D > B

d

D > C > A > B

answer is B.

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Detailed Solution

Boiling point of alcohol is higher than corresponding ether due to the hydrogen bonding present in alcohol.

For the same number of carbon atoms, the branched chain alcohol has lower boiling point than the straight chain alcohol.

Reason :  Branched chain alcohol has a lesser surface area. 

B.P order:

A > C > D > B

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