Basics of Organic Chemistry AFCAT Questions

AFCAT Chemistry

Basics of Organic Chemistry MCQ Questions


1.
By Thin layer chromatography technique, the amino acids may be detected by spraying the chromaplate with _____ solution.
A.
Ninhydrin
B.
Brine
C.
Salt
D.
Sugar
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ANSWER :
A. Ninhydrin
2.
_____ technique is applied to separate substances which are steam volatile and are immiscible with water
A.
Sublimation
B.
Fractional distillation
C.
Steam distillation
D.
None of these
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ANSWER :
C. Steam distillation
3.
_____ is based on the fact that different compounds are adsorbed on an adsorbent to different degrees
A.
Adsorption chromatography
B.
Partition chromatography
C.
Fractional chromatography
D.
None of these
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ANSWER :
A. Adsorption chromatography
4.
Which of the following are the methods for estimation of nitrogen?
A.
Dumas method
B.
Kjeldahl's method
C.
Both a and b
D.
None of these
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ANSWER :
C. Both a and b
5.
One of the technological applications of fractional distillation is to separate different fractions of crude oil in _____ industry
A.
Lipids
B.
Fats
C.
Cooking oil
D.
Petroleum
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ANSWER :
D. Petroleum
6.
Glycerol can be separated from spent-lye in _____ industry by using the distillation under reduced pressure technique
A.
Soap
B.
Oil
C.
Food
D.
Milk
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ANSWER :
A. Soap