Which gas is evolved when HCl is added to red lead?
Chlorine
Oxygen
Hydrogen
Sulphur
_________ is a powerful oxidising agent.
H2SO4
HNO3
CH3COOH
HCl
In aqua - regia, which one of the following react with Noble metals?
Nascent Hydrogen
Nascent Oxygen
Nascent Chlorine
Nascent Nitrogen
Hydrochloric acid is used in
the extraction of glue from bones
tanning and Calico printing industry
the digestion of proteins
all of these
The salt obtained when rock salt reacts with conc. sulphuric acid below 200oC is which type of salt?
acid
normal
base
amorphous
Name the acid produced when HCl gas is dissolved in water
Sulphuric acid
Hydrochloric acid
Phosphoric acid
Nitric acid
HCl gas is dried through
H2O
NH3
Hydrogen chloride gas is collected by
Upward displacement of air
Downward displacement of air
Upward displacement of water
Downward displacement of water
Acid formed when nitrates react with HCl is
nitrous acid
nitric acid
amino acids
none of these
