Which compound would be expected to have the lowest boiling point? (a) 2, 2-dime
ID: 537631 • Letter: W
Question
Which compound would be expected to have the lowest boiling point? (a) 2, 2-dimethylbutane (b) 2-methylpentane (c) hexane (d) octane In order for a nucleus of an atom to exhibit the NMR phenomenon, it must consist of (a) an odd number of protons (b) an odd number of neutrons (c) an odd number of both protons and neutrons (d) only one of the compositions described in a, b and c Reduction of 2-butanone gives a racemic mixture of 2-butanol. Enantiomerically pure (R)-2-butanol may be obtained by all the following except: (a) chromatographic separation on a chiral stationary phase. (b) reaction with an enzyme that reacts with the (S) enantiomer. (c) reaction with (+) tartaric acid and separation of diastereomers. (d) fractional distillation. Which one of these bonds will absorb infra-red radiation at the highest frequency? (a) C-Cl (b) C-H (c) C-O (d) C-N Which specie below is capable of electron delocalization/resonance?Explanation / Answer
Which of boiling would be expected to have lowest boiling point
a) 2,2 -dimethylbutane
50 °C
answer
It is also known as neohexane
it is Less dense than water .
it is insoluble in water
b) 2 -methylpentane
60C
c)hexane
68 °C
straight-chain alkanes
d)octane
125 °C
straight-chain alkanes
In order for a nucleus of an atom to exhibit the NMR phenomenon, it must consist of
A. an odd number of protons
B. an odd number of protons and neutrons
C. an odd number of neutrons
D. any one of the compositions described in a, b, and c----------------answer
spinning of particles
a) 2,2 -dimethylbutane
50 °C
answer
It is also known as neohexane
it is Less dense than water .
it is insoluble in water
b) 2 -methylpentane
60C
c)hexane
68 °C
straight-chain alkanes
d)octane
125 °C
straight-chain alkanes
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