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NEET UG CHEMISTRY MCQ: ORGANIC CHEMISTRY-SOME BASIC PRINCIPLES AND TECHNIQUES
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Arrange the following compounds in increasing order boiling points
a) Pentan-1-ol b) butan-1-ol
c) butan-2-ol d) ethanol
a) Pentan-1-ol b) butan-1-ol
c) butan-2-ol d) ethanol
View answer and explanation
Correct option: C
d < c < b < a
Option C (d < c < b < a) is correct because boiling point increases with increasing molecular weight and strength of intermolecular forces. Ethanol (d) has the lowest molecular weight and weakest intermolecular forces, while pentan-1-ol (a) has the highest molecular weight and strongest intermolecular forces.
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Reason (R) -nitrophenol is steam volatile whereas onitrophenol is not steam volatile. An organic compound having carbon, hydrogen and sulphur contains 4% of sulphur. The minimum molecular weight of the compound is Increasing order of acid strength is
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a) Phenol b) 3-Nitrophenol
c) 3,5-dinitro phenol 4) 2,4,6-trinitro phenol Isobutyl chloride is :