Arrange the following compounds in order of decreasing boiling point of pentane, octane,hexane,2-methylpentane
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Answer:
Octane>Hexane>2-methyl pentane>pentane
Explanation:
The Boiling point of an organic compound increases with the number of carbons in it.
If two compounds have the same number of carbons, the compound with more branches has lesser boiling point.
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The given compounds in order of decreasing boiling point of Octane > hexane > 2-methyl pentane > pentane.
Explanation:
- The given compounds pentane, octane, hexane,2-methyl pentane all of these belongs to the family of alkane.
- So, the boiling points depend on the strength of the London dispersion forces between the atom of the Molecules.
- With the increase in the number of Carbon atoms in a compound, the boiling point is also increased.
- The compounds having the same numbers of Carbon atoms are compared on the basis of the Branching.
- The more the Branching in the Compound the lesser the 'boiling point of the compound'.
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