The compound which has the higher boiling point in the following is:
Correct answer: B. Methyl iodide
- A. Methyl chloride
- B. Methyl iodide
- C. Methyl bromide
- D. Both a and b
Explanation
For the same alkyl group the boiling points of haloalkanes are in the order RCl < RBr < RI, because with the increase in the size of halogen atom the magnitude of van der Waal forces of attraction increases. Hence the order of boiling points is Methyl chloride (CH3Cl) < methyl bromide (CH3Br) < methyl iodide (CH3I).
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