Removal of salt from seawater (desalination) can be carried out by
(a) evaporation of salt water.
(b) cooling salt water.
(c) distillation of salt water.
(d) filtration of salt water.

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Solution

(a) evaporation of salt water
Desalination is a process of removing salt from seawater. It can be carried out by evaporation of salt water. As water evaporates, it leaves behind salt.

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Salt can be separated from its solution (salt dissolved in water) because
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(b) mixing of salt in water is a change that cannot be reversed
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Q. Arrange the following steps for separating sand and salt in the correct order:

A	Heat filtrate to evaporate the solvent (water).
B	Pour salt water filtrate into an evaporating basin on a tripod over a bunsen burner.
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D	Place the sand/salt mixture into a beaker and add water.
E	Allow basin to cool & collect salt.
F	Stir to allow the salt to dissolve in the water.

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

Q. Salt from sea water can be separated by filtration. True or false?

Which methods will you use to obtain salt from the sea water in salt pans − evaporation or distillation?

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Removal of salt from seawater (desalination) can be carried out by (a) evaporation of salt water. (b) cooling salt water. (c) distillation of salt water. (d) filtration of salt water.

(a) evaporation of salt water Desalination is a process of removing salt from seawater. It can be carried out by evaporation of salt water. As water evaporates, it leaves behind salt.

Removal of salt from seawater (desalination) can be carried out by
(a) evaporation of salt water.
(b) cooling salt water.
(c) distillation of salt water.
(d) filtration of salt water.

(a) evaporation of salt water
Desalination is a process of removing salt from seawater. It can be carried out by evaporation of salt water. As water evaporates, it leaves behind salt.