91. Biodegradable materials are:
A) Non-decomposable
B) Decomposable by microbes
C) Toxic
D) Synthetic
Answer: B
92. Non-biodegradable waste includes:
A) Paper
B) Food
C) Plastics
D) Leaves
Answer: C
93. Industrial safety includes:
A) Protective equipment
B) Safety training
C) Hazard control
D) All of these
Answer: D
94. MSDS stands for:
A) Material Safety Data Sheet
B) Metal Safety Data Sheet
C) Material Storage Data Sheet
D) None
Answer: A
95. Automation in industry increases:
A) Labor
B) Efficiency
C) Pollution
D) Cost
Answer: B
96. Industrial catalysts are used to:
A) Slow reactions
B) Speed up reactions
C) Stop reactions
D) Change products
Answer: B
97. Which is a petrochemical product?
A) Plastic
B) Fertilizer
C) Soap
D) Glass
Answer: A
98. Ammonia is used to produce:
A) Fertilizers
B) Explosives
C) Nitric acid
D) All of these
Answer: D
99. Industrial chemistry helps in:
A) Economic growth
B) Job creation
C) Mass production
D) All of these
Answer: D
100. Sustainable industry aims at:
A) Maximum profit
B) Environmental protection
C) Resource conservation
D) Both B and C
Answer: D