Potassium Nitrate is used as………….
a) antacid
b) laxaaaative
c) fertilizer
d) none of these
Potassium Nitrate is used for manufacaturing of flint………….
a) glass
b) dye
c) detergent
d) paper
KNO3 is the formula of………….
a) potash Alum
b) copper sulphate
c) potassium Nitrate
d) Calcium sulphate
Potash Alum or Alum is used in the purification of…………….to remove the suspended impurities.
a) sodium
b) water
c) dyes
d) none of these
Calcium sulphate is commonly known as
a) gypsum
b) baking soda
c) washing soda
d) Alum
Calcium sulphate is used as fertilizer in the preparation of ………….
a) plaster of paris
b) cement industry
c) both a and b
d) dye industry
