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प्रश्न
The dyes present in fountain pen ink can be separated by the technique of :
पर्याय
fractional distillation
infrared photography
crystallisation
chromatography
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उत्तर
chromatography
Chromatography is the technique used to separate the contents of a mixture, where solute particles are in extremely small quantity.
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संबंधित प्रश्न
What do you mean by the inter-molecular spaces? How do they vary in different states of matter?
Solids have definite shape and definite volume.
Explain why, osmosis can be considered to be a special kind of diffusion. Classify the following into
(i) osmosis, and (ii) diffusion :
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- spreading of virus on sneezing
- earthworm dying on coming in contact with common salt
- shrinking of grapes kept in thick sugar syrup
- preserving of pickles in salt
- spreading of smell of cake being baked in the kitchen
- aquatic animals using oxygen dissolved in water during respiration
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Salt, Air, Water, Alum, Sugar
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What is meant by saying that metals are sonorous ?
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The elements which normally exist in the liquid state are :
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Fill in the following blank :
A colloid is a ..............mixture and its components can be separated by the technique known as ...............
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Ink, Salt solution, Starch solution, Blood, Sugar solution
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Alcohol can be separated from a mixture of alcohol and water by a separating funnel.
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Draw a labelled diagram of the fractional distillation apparatus used for separating a mixture of alcohol and water.
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Write scientific reason.
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