Arrange the following compounds in increasing order of their boiling points:
A
(II) < (I) < (III)
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B
(I) < (II) < (III)
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C
(III) < (I) < (II)
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D
(III) < (II) < (I)
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Solution
The correct option is B (III) < (I) < (II) More the surface area more will be boiling point i.e. branching decreases boiling point because surface area decreases due to branching which result in decreases in attraction.