51. Which process is used for manufacturing hydrochloric acid?
A) Direct synthesis
B) Haber process
C) Solvay process
D) Contact process
Answer: A
52. Hydrochloric acid is produced by combining:
A) H₂ and Cl₂
B) H₂ and O₂
C) Cl₂ and O₂
D) NaCl and H₂
Answer: A
53. The main raw material of petrochemical industry is:
A) Coal
B) Petroleum
C) Wood
D) Limestone
Answer: B
54. LPG mainly consists of:
A) Methane and ethane
B) Propane and butane
C) Ethane and propane
D) Methane and propane
Answer: B
55. CNG mainly contains:
A) Ethane
B) Methane
C) Propane
D) Butane
Answer: B
56. Which process converts coal into coke?
A) Distillation
B) Destructive distillation
C) Cracking
D) Polymerization
Answer: B
57. Coal tar is obtained during:
A) Combustion
B) Destructive distillation
C) Refining
D) Cracking
Answer: B
58. Which compound is obtained from coal tar?
A) Benzene
B) Ethanol
C) Methane
D) Propane
Answer: A
59. Water gas is a mixture of:
A) CO and H₂
B) CO₂ and H₂
C) CH₄ and H₂
D) CO₂ and CH₄
Answer: A
60. Producer gas contains:
A) CO and N₂
B) CO₂ and H₂
C) CH₄ and O₂
D) CO and O₂
Answer: A