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Question

Correct boiling point is:
CH3CH2−II CH3CH2−BrIi CH3CH2−ClIii CH3CH2−FIV

A
IV>III>II>I
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B
II>III>IV>I
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C
I>II>III>IV
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D
IV>III>I>II
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Solution

The correct option is B I>II>III>IV
With increase in the molecular weight, the boiling point also increases.
The order of the atomic weights of halogens is I>Br>Cl>F.
Hence, the correct order of the boiling point is I>II>III>IV or CH3CH2II>CH3CH2BrII>CH3CH2ClIII>CH3CH2FIV.

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