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Is Matter Around Us Pure
Given a solution of substance A, how will you test whether it is saturated or unsaturated with respect to A at the prevailing temperature? What is observed when a hot saturated solution of a substance is allowed to cool?
To given solution add a small amount of substance A to its given solution. If A dissolves and clear solution is formed, then it is an unsaturated solution of substance A. If the substance A added does not dissovle and settles down, then the solution is saturated.
When a hot saturated solution of a substance is allowed to cool, some of the salt reappears.
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Which separation techniques will you apply for the separation of the following?
Sodium chloride from its solution in water.
Which separation techniques will you apply for the separation of the following?
Ammonium chloride from a mixture containing sodium chloride and ammonium chloride.
Which separation techniques will you apply for the separation of the following?
Small pieces of metal in the engine oil of a car.
Which separation techniques will you apply for the separation of the following?
Different pigments from an extract of flower petals.
Which separation techniques will you apply for the separation of the following?
Butter from curd.
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