Hydrogen chloride gas on mixing with ammonia produces dense white fumes due to the formation of:
Ammonium hydroxide
Ammonium chloride
Nitrogen
Sulphur dioxide
Reaction:
NH3+HCl→NH4Cl
When conc. sulphuric acid is added to sodium chloride, sodium bisulphate and gas X is formed. If a rod dipped in ammonia is brought near gas X, dense white fumes of ammonium chloride are formed. What is X?