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कर्नाटक बोर्ड पी.यू.सी.पीयूसी विज्ञान 2nd PUC Class 12

Which is the correct increasing order of boiling points of the following compounds? 1-Iodobutane, 1-Bromobutane, 1-Chlorobutane, Butane - Chemistry

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प्रश्न

Which is the correct increasing order of boiling points of the following compounds?

1-Iodobutane, 1-Bromobutane, 1-Chlorobutane, Butane

पर्याय

  • Butane < 1-Chlorobutane < 1-Bromobutane < 1-Iodobutane

  • 1-Iodobutane < 1-Bromobutane < 1-Chlorobutane < Butane

  • Butane < 1-Iodobutane < 1-Bromobutane < 1-Chlorobutane

  • Butane < 1-Chlorobutane < 1-Iodobutane < 1-Bromobutane

MCQ
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उत्तर

Butane < 1-Chlorobutane < 1-Bromobutane < 1-Iodobutane

Explanation:

The higher the surface area, the higher will be the intermolecular forces of attraction and thus boiling point too. Boiling point increases with increase in molecular mass of halogen atom for the similar type of alkyl halide. Butane has no halogen atom and rest of all three compounds are halo derivatives of butane.

Atomic mass of iodine is highest so the boiling point of 1-iodobutane is maximum among all the given compounds.

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पाठ 10: Haloalkanes and Haloarenes - Exercises [पृष्ठ १४०]

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एनसीईआरटी एक्झांप्लर Chemistry [English] Class 12
पाठ 10 Haloalkanes and Haloarenes
Exercises | Q I. 30. | पृष्ठ १४०

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\ce{CH3}\phantom{..................}\\
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/\phantom{.............}\\
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