| 81. | The chemical used for preservation of food is |
A. Sodium chloride | |
B. caustic soda | |
C. sodium benzoate | |
D. sulfuric acid |
| 82. | used for food processing |
A. sodium carbonate | |
B. acetic acid | |
C. sodium nitrate | |
D. benzoic acid |
| 83. | Tear gas is used in – |
A. chloro acetophenone | |
B. bromo acetophenone | |
C. fluoro acetophenone | |
D. chloro acetoquinone |
| 84. | Carbolic acid is |
A. HCO | |
B. C₆H₅COOH | |
C. C₆H₅OH | |
D. C₆H₅CH₂OH |
| 85. | Which was the major polluter responsible for the Bhopal gas tragedy? |
A. methyl isocyanate | |
B. bromine | |
C. methyl isocyanate | |
D. chlorine |
| 86. | What is the main source of naphthalene? |
A. bitumen | |
B. Diesel | |
C. charcoal | |
D. camphor |
| 87. | Methyl isocyanate gas, which caused the Bhopal disaster in December, 1984, was used in the Union Carbide factory for the production of? |
A. dye | |
B. detergent | |
C. Explosive | |
D. Pesticide |
| 88. | What is Teflon? |
A. fluoro carbon | |
B. hydrocarbons | |
C. disinfectant | |
D. insecticide |
| 89. | Orlan is a polymer made from? |
A. acrylonitrile | |
B. neoprene | |
C. vinyl chloride | |
D. tetrafluoro ethylene |
| 90. | Chloro is obtained from the polymerization of ethylene? |
A. polyethylene | |
B. urea | |
C. rubber | |
D. PVC |