41. Which chemical is commonly used as a solvent in nail polish remover?
a) Acetone
b) Ethanol
c) Isopropyl alcohol
d) Toluene
42. Which Indian company is the largest producer of ammonia and urea?
a) National Fertilizers Limited (NFL)
b) Rashtriya Chemicals and Fertilizers Limited (RCF)
c) Gujarat State Fertilizers & Chemicals Ltd.
d) Krishak Bharati Cooperative Limited (KRIBHCO)
43. Which chemical is commonly used as a cleaning agent in households?
a) Sodium hydroxide
b) Sodium carbonate
c) Sodium bicarbonate
d) Sodium chloride
44. Which petrochemical is used in the production of synthetic fibers like nylon?
a) Ethylene
b) Propylene
c) Benzene
d) Caprolactam
45. Which chemical is commonly used as a thickening agent in personal care products?
a) Carbomer
b) Xanthan gum
c) Sodium alginate
d) Cellulose gum
