A. Bleaching powder
B. Chlorine
C. Calcium sulphate
D. Alum
A. Increasing the oxygen concentration
B. Putting more quantity of V2O5 catalyst in the converter
C. Removing some quantity of SO3 during intermediate stage
D. Maintaining low temperature & pressure in the converter
A. Greater resistance to corrosion by slags
B. Less resistance to corrosion by slags
C. High spalling tendency
D. None of these
A. Benzene hexachloride
B. Alkyl benzene sulphonate
C. Polytetrafluoroethylene
D. Cellulose nitrate
A. Act as an acidifying agent
B. Increase its concentration
C. Increase the amount of molasses
D. Increase the crystal size
A. Thinner
B. Pigment
C. Both A. & B.
D. Neither A. nor B.
A. Sand
B. Bauxite
C. Quicklime
D. Calcite