The bleaching action of sulphurdioxide is
Oxidation
reduction
hydration
dehydration
When Zinc Sulphate reacts with hydrogen sulphide, a white precipitate formed is
Zinc oxide
Zinc hydroxide
Zinc hydride
Zinc sulphide
The chemical used for skin diseases
Copper sulphide
Nickel sulphide
Mercuric sulphide
The allotrope of sulphur which is insoluble in carbon disulphide
Rhombic sulphur
Monoclinic sulphur
Plastic sulphur
Powdered sulphur
One of the compounds of sulphur used in match industry
CS2
SO2
Calcium sulphide
Phosphorous trisulphate
Lead chamber process is the method for the preparation of
HCl
H2SO4
H2S
The transition temperature of Rhombic sulphur and Monoclinic sulphur is
230o C
440o C
119o C
96o C
Gun powder is a mixture of sulphur, charcoal and
NaCl
Mercuric oxide
Zinc
Potassium nitrate
The formula of crystalline copper sulphate is
CuSO4H2 O
CuSO43H2 O
CuSO4 7H2 O
CuSO4 5H2 O
SO2 releases this in the presence of moisture
Oxygen
Hydrogen
Nitrogen
Sulphur
