Chemical & Petrochemical Sector

51. Which chemical is commonly used as a feedstock for the production of polyvinyl chloride (PVC)?
a) Ethylene
b) Propylene
c) Vinyl chloride monomer (VCM)
d) Benzene

52. Which Indian city is known for its petrochemical and refinery complexes?
a) Visakhapatnam
b) Hyderabad
c) Jaipur
d) Lucknow

53. Which chemical is commonly used as a stabilizer in the production of plastic products?
a) Lead
b) Cadmium
c) Mercury
d) Phthalates

54. Which petrochemical is used in the production of polyethylene terephthalate (PET)?
a) Ethylene
b) Propylene
c) Terephthalic acid (TPA)
d) Benzene

55. Which chemical is commonly used as a reducing agent in photography?
a) Sodium hypochlorite
b) Hydrogen peroxide
c) Sodium sulfite
d) Sodium carbonate