What is the main purpose of a catalytic converter in a chemical plant?
a) To increase the temperature of reactions
b) To increase the rate of reaction
c) To remove impurities from reactants
d) To reduce energy consumption
Answer: b) To increase the rate of reaction

Which of the following is a by-product of the petroleum refining process?
a) Ethanol
b) Kerosene
c) Ethylene
d) Biodiesel
Answer: c) Ethylene

Which compound is primarily produced using the Ostwald process?
a) Sulfuric acid
b) Nitric acid
c) Phosphoric acid
d) Acetic acid
Answer: b) Nitric acid

Which chemical is widely used in the food industry as a preservative?
a) Sodium benzoate
b) Sodium carbonate
c) Calcium sulfate
d) Ammonium chloride
Answer: a) Sodium benzoate

Which industry uses the most sulfuric acid?
a) Textile
b) Fertilizer
c) Pharmaceutical
d) Petrochemical
Answer: b) Fertilizer

What is the primary raw material for the production of glass?
a) Quartz
b) Limestone
c) Sand
d) Sodium carbonate
Answer: c) Sand

Which chemical is commonly used in the production of soap?
a) Sodium chloride
b) Potassium nitrate
c) Sodium hydroxide
d) Calcium sulfate
Answer: c) Sodium hydroxide

Which process is used for the large-scale production of sulfuric acid?
a) Contact process
b) Haber process
c) Solvay process
d) Ostwald process
Answer: a) Contact process

Which gas is a primary component in the production of synthetic rubber?
a) Ethylene
b) Butadiene
c) Propane
d) Methane
Answer: b) Butadiene

Which chemical compound is used as a refrigerant in air conditioning systems?
a) Ammonia
b) Freon
c) Methane
d) Ethylene
Answer: b) Freon