Mixtures
A technique which is used to separate and identify the different constituents of mixture is called
paper chromatography
color chromatography
dye chromatography
chemical chromatography
paper chromatography
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Perfume industry obtains fragrant oil from plants using techniqueA. reverse osmosis
B. distillation
C. filtration
D. heating
The point at which solid substance changes into liquid state, is called
A. melting point
B. boiling point
C. power point
D. complex point
Mineral water is mixture of many
A. minerals
B. metals
C. gases
D. compounds
Petroleum, gasoline, kerosene, diesel and paraffin wax are yielded to fractional distillation of
A. mustard oil
B. sunflower oil
C. crude oil
D. almond oil
Saline solution is mixture of
A. water
B. salt
C. gases
D. both a and b
Boiling point is a point at which liquid turns in to
A. solid
B. gas
C. molten shape
D. vapours
The ‘technique’ which is used in water treatment plants, is
A. distillation
B. filtration
C. evaporation
D. fractional distillation
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