If a salt after rubbing with fingers gives the smell of ammonia, then the salt is:
calcium carbonate
sodium carbonate
ammonium chloride
lead sulphide
A
calcium carbonate
B
ammonium chloride
C
sodium carbonate
D
lead sulphide
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Solution
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If a salt after rubbing with fingers, gives the smell of ammonia, then the salt may be ammonium chloride. After rubbing, due to warming, ammonium chloride may decompose to give ammonia and hydrogen chloride. NH4Clwarm−−−→NH3+HCl
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