Q.

The compounds C3H8,CH3CH2OH and CH3OCH3 have very similar molar masses. When they are arranged in order of increasing strength of their intermolecular forces, what is the correct order?

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a

C3H8,CH3OCH3,CH3CH2OH

b

CH3CH2OH,CH3OCH3,C3H8

c

CH3OCH3,C3H8,CH3CH2OH

d

CH3CH2OH,C3H8,CH3OCH3

answer is A.

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Detailed Solution

The compounds C3H8CH3CH2OH, and CH3OCH3 have very similar molar mass. The increasing order of their intermolecular force is given as,

C3H8<CH3OCH3< CH3CH2OH

Thus, option A is correct.

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