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Chemistry
The exact order of boiling points of the compounds n-pentane, isopentane, butanone and 1 -butanol is
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Q. The exact order of boiling points of the compounds $n$-pentane, isopentane, butanone and $1$ -butanol is
WBJEE
WBJEE 2021
A
$n$-pentane $<$ isopentane $<$ butanone $<1$-butanol
B
isopentane $< n$-pentane $< $ butanone $< 1$-butanol
C
butanone $< n$-pentane $< $ isopentane $< 1$-butanol
D
$1$-butanol $< $ butanone $< n$-pentane $< $ isopentane
Solution:
As intermolecular force varies as:
$H$ bonding $>$ dipole dipole force $>$ vander waals force
$\therefore $ boiling point order
$n$-butanol $>$ butanone $> n$-Pentane $>$ iso pentane