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Question
You are provided with a mixture of naphthalene and ammonium chloride by your teacher. Suggest an activity to separate them with well labelled diagram.
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Solution
A mixture of naphthalene and ammonium chloride can be separated as follows :
Step-1: Put the mixture in a beaker and add water to it. Stir with a glass rod. Ammonium chloride is soluble in water gets dissolved leaving behind the insoluble naphthalene.
Step-2: Filter the solution. Naphthalene remains on the filter paper while ammonium chloride is obtained as filtrate.
Step-3: Evaporate the filtrate to get back ammonium chloride.
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