When a mixture of common salt and ammonium chloride is heated, white fumes are liberated which change into a white deposit when cooked. What is this substance?
A
Ammonium chloride
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B
Common salt (sodium chloride)
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C
A mixture of ammonium chloride and common salt
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D
Ammonium sulphate
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Solution
The correct option is A Ammonium chloride When a mixture of common salt and ammonium chloride is heated, white fumes are liberated which changes into a white deposit when cooked. This white substance is ammonium chloride. Salt and Ammonium chloride are separated by the method of sublimation.