In laboratory preparation of hydrogen, Zinc is treated with the acid
Hydrochloric acid
Sulphuric acid
Nitric acid
Boric acid
Galena is
Zns
Pbs
CuFeS2
TnS
The solvent used to separate iodine molecules in the solid from each other
Water
Benzene
HCl
Cyclohexane
Sulphurous acid is
H2SO4
H2S2O7
H2SO3
HSO4
The common isotope of hydrogen
Tritium
Deuterium
Protium
Dihydrogen
