Chemistry
Fill in the blanks
(a) …………… are made up of same kind of atoms.
(b) …………… and …………… are pure substances.
(c) In a ……………, the substances are not combined chemically.
(d) Clay is separated from water by a method called …………… .
(e) …………… is a process to obtain a very pure form of a solid dissolved in a liquid.
(f) Camphor and ammonium chloride can …………… .
Elements, Compounds & Mixtures
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Answer
(a) Elements
(b) Elements, compounds
(c) mixture
(d) filtration
(e) Crystallization
(f) sublime
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Related Questions
(a) What is chromatography?
(b) Why is it named so?
(c) What are the advantages of chromatography?
(d) Name the simplest type of chromatography?
(e) On what principle is this method based?
(f) What is meant by stationary phase and mobile phase in chromatography?
On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used
(a) sublimation
(b) filtration
(c) sedimentation and decantation
(d) solvent extraction method
(e) magnetic separation
(f) by using a separating funnel
(g) fractional distillation
Give one word answers for the following:
(a) The solid particles which remain on the filter paper after the filtration.
(b) The liquid which evaporates and then condenses during the process of distillation.
(c) The process of transferring the clean liquid after the solid settles at the bottom of the container.
(d) The process by which two miscible liquids are separated.
A pure liquid is obtained from a solution by:
- evaporation
- distillation
- filtration
- crystallization