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Question: Answered & Verified by Expert
Arrange the following compounds in decreasing order of their boiling points
(i) CH3Br
(ii) CH3CH2Br
(iii) CH3CH2CH2Br
(iv) CH3CH2CH2CH2Br
ChemistryHaloalkanes and HaloarenesNEET
Options:
  • A (i) > (ii) > (iii) > (iv)
  • B (iv) > (iii) > (ii) > (i)
  • C (i) > (iii) > (ii) > (iv)
  • D (iii) > (iv) > (i) > (ii)
Solution:
2364 Upvotes Verified Answer
The correct answer is: (iv) > (iii) > (ii) > (i)
Boiling point of the given compounds decreases in the following order as molecular weight decreases magnitude of Van der Waal's forces also decreases.
CH3CH2CH2CH2Br>CH3CH2CH2Br>CH3CH2Br>CH3Br

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