| 81. | Which one of the following electrolyte solutions is used in car batteries? |
A. sodium sulphate | |
B. nitric acid | |
C. sluric acid | |
D. potassium nitrate |
| 82. | Which acid is stored in batteries? |
A. sulfuric acid | |
B. nitric acid | |
C. hydrochloric acid | |
D. acetic acid |
| 83. | What happens when a lead storage battery is charged? |
A. sulfur dioxide is formed | |
B. lead sulphate is consumed | |
C. lead is made | |
D. sulfuric acid is consumed |
| 84. | Which acid is considered a ‘basic chemical’ in the chemical industry? |
A. hydrochloric acid | |
B. sulfuric acid | |
C. sulfuric acid | |
D. acetic acid |
| 85. | As a result of the reaction of dilute sulfur with zinc, it is produced- |
A. Hydrogen | |
B. sulfur dioxide | |
C. sulfur trioxide | |
D. hydrogen sulphide |
| 86. | Which of the following is predominant in acid rain? |
A. carbolic acid | |
B. hydrochloric acid | |
C. nitric acid | |
D. sulfuric acid |
| 87. | Which gas emitted from power stations causes acid rain? |
A. helium | |
B. carbon dioxide | |
C. nitrogen | |
D. sulfur dioxide |
| 88. | Carbon or graphite rods are used in nuclear reactors as moderators for a sustainable nuclear chain reaction through the nuclear fission process. In this process- |
A. neutrons are produced rapidly | |
B. protons build up quickly | |
C. neutrons build up slowly | |
D. Protons build up slowly |
| 89. | When concentrated sulfuric acid is poured on sugar, it gets scorched, in this process sugar- |
A. gets oxidized | |
B. gets degraded | |
C. becomes dehydrated | |
D. sulfonation occurs |
| 90. | Caro acid is known as – |
A. H₂SO₅ | |
B. H₂SO₄ | |
C. H₂S₂O₇ | |
D. H₂S₂O₈ |