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Question
Give a chemical test to distinguish between the following gases:
Ammonia and hydrogen chloride
Solution
Ammonia [NH3]: Bring a glass rod dipped in cone. HCl gives dense white fumes. Turns nessler’s reagent from colourless to pale-brown.
Hydrogen chloride [HCl]: Bring a glass rod dipped in cone. HCl, no white fumes. No-action with nessler’s reagent.
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