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Physical Change

Which substan...

Question

Which substances can be separated by the sublimation method?

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Solution

The process in which a solid substance converts directly into its gaseous state on heating without converting into a liquid state is known as sublimation.
So, sublimable substances like camphor, iodine, dry ice can be separated from non-sublimable impurities.

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Q. Name any two solid substances whose mixture can be separated by sublimation.

Q. Apart from salt and ammonium chloride, which other mixture can be separated by sublimation?

Method of separation by sublimation is limited.

Answer in brief :

(a) How are mixtures formed?

(b) Why do we need to separate substances from their mixtures?

(c) Name the methods used to separate substances from mixtures.

(d) What is sublimation?

Q. Which of the following substances when mixed with sand cannot be separated by sublimation?

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