calsium carbonate is used in the preparation of
a) dye industry
b) cement
c) ceramics
d) both a and b
…………..is used as antacid.
a) calcium carbonate
b) magnesium sulphate
c) calcium sulphate
d) none of these
Magnesium sulpphate in used in…………
a) ceramic industry
b) leather industry
c) dye industry
d) all of these
For copper platiing in electroplating process…………. is used.
a) copper sulphate
b) calcium sulphate
c) potassium Alum
d) calcium carbonate
Copper sulphate is also used to kill ………….in water reservoirs.
a) bacteria
b) fungi
c) algae
d) all of these
Copper sulphate is also used in………….
a) dye industry
b) leather industry
c) agriculture spray
d) toothpaste
