Purification and analysis of organic compounds MCQ
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1. Anthracene is purified by which method :
DistillationSublimation
Filtration
Crystallisation
2. A bottle containing two immiscible liquids. These liquids may be separated by using a :
Separating funnelVacuum distillation
Fractionating coloumn
Steam distillation
3. When Lamery proposed his classifications of substances in the year 1675 the substance not know among the following was :
WineIron
Cane sugar
Penicillin
4. In laboratory, first organic compound was synthesized by_________ :
HennelWohler
Liebig
Kekule
5. A mixture of oil and water is separated by which method:
SublimationFiltration
Using separating funnel
Fractional distillation
6. First organic compound to be synthesised was ________:
Cane sugarAcetic acid
Urea
Methane
7. Separation of two substance by fractional crytallisation depends upon their differences in the__________ :
Crystalline shapeSolubility
Volatility
Densities
8. Impure naphthalene is purified by which method :
SublimationFractional distillation
Soxhlet extraction
Fractional crystallization
9. Which of the following not sublimate :
ChlorineBebzoic acid
Camphor
Naphthalene
10. Aniline is purified by which method:
Extraction with a solventVacuum distillation
Simple distillation
Steam distillation
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