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प्रश्न
When an ammonium salt is warmed with sodium hydroxide solution, a gas is evolved. State three ways in which you could identify this gas.
उत्तर
- It has a sharp characteristic odour.
- It gives dense white fumes with conc. HCl
\[\ce{NH3 + HCl -> NH4Cl}\] - It gives light to deep Brown Colour or ppt. with nessler's solution K2HgI4
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