HCL is collected by

• Downward displacement of air
• Downward displacement of water
• upward displacement of air
• upward displacement of water

HCl gas is dried by

• Quick lime
• Conc.Sulphuricacid
• Anhydrous calcium chloride
• Phosphorous pentoxide

The gas which react chemically to form solid substance

• H2 and Cl2

• NH3 and HCl

• CO2 and SO2

• NO2 and CO2

The nitrate which evolves nitrous oxide on decomposition

• calcium nitrate

• Magnesium nitride

• Ammonium nitrite

• Ammonium nitrate

Ammonia can be obtained by adding water to

• Ammonium Chloride
• Ammonium nitrite
• Magnesium Nitride
• Magnesium Nitrate

With excess chlorine,Ammonia forms

• NH4Cl
• NCl3
• NOCl
• N2Cl

The catalyst used for the oxidation of ammonia

• Platinum
• Copper
• Calcium
• Iron

A substance which react with conc.HCl to liberate chlorine

• PbCl2
• MnO2
• AgCl
• KNO2

A compound which on reaction with HCl leaves a yellow residue behind

• AgCl
• Conc.H2SO4
• MnO2
• Na2S2O3

A salt which is soluble in hot water but insoluble in cold water

• Lead nitrate
• Lead chloride
• Potassium chloride
• Sodium nitrate