Question 12
Salt can be recovered from its solution by evaporation. Suggest some other technique for the same?

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Solution

Salt can be recovered from its solution by 'crystallisation'. Crystallisation' is a better technique than 'evaporation' because it removes soluble impurities also, which do not get removed in the process of evaporation.

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Q. Question 12
Salt can be recovered from its solution by evaporation. Suggest some other technique for the same?

State whether the following statements are true or false.

(a) Alcohol can be separated from a mixture of alcohol and water by a separating funnel.

(b) Salt and water can be recovered from an aqueous salt solution by the process of evaporation.

Q. Give reason:
a. Sugar and water can be separated by crystallisation technique.
b. Salt from seawater can be separated by evaporation technique.

Question 5

Salt can be separated from its solution (salt dissolved in water) because
(a) mixing of salt in water is a change that can be reversed by heating and melting of salt
(b) mixing of salt in water is a change that cannot be reversed
(c) mixing of salt in water is a permanent change
(d) mixing of salt in water is a change that can be reversed by evaporation

Name the process which can be used to recover salt from an aqueous salt solution.

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Cooling from Evaporation

Standard IX Chemistry

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Question 12 Salt can be recovered from its solution by evaporation. Suggest some other technique for the same?

Salt can be recovered from its solution by 'crystallisation'. Crystallisation' is a better technique than 'evaporation' because it removes soluble impurities also, which do not get removed in the process of evaporation.

Question 12
Salt can be recovered from its solution by evaporation. Suggest some other technique for the same?