21. Which chemical is commonly used as a bleaching agent in the textile industry?
a) Hydrogen peroxide
b) Sodium hypochlorite
c) Ammonium sulfate
d) Potassium permanganate
22. Which Indian company is the largest producer of nitrogenous fertilizers?
a) Indian Farmers Fertiliser Cooperative Limited (IFFCO)
b) Rashtriya Chemicals and Fertilizers Limited (RCF)
c) National Fertilizers Limited (NFL)
d) Krishak Bharati Cooperative Limited (KRIBHCO)
23. Which chemical is commonly used in the production of soap?
a) Sodium hydroxide
b) Sodium chloride
c) Sodium carbonate
d) Sodium bicarbonate
24. Which petrochemical is used in the production of polyvinyl chloride (PVC)?
a) Ethylene
b) Propylene
c) Vinyl chloride monomer (VCM)
d) Benzene
25. Which chemical is commonly used as a sweetening agent in food and beverages?
a) Aspartame
b) Saccharin
c) Stevia
d) Sucralose
