1. In a car battery, electrolyte substance used is- (2)
- 1. Hydrochloric acid
- 2. Sulphuric acid
- 3. Nitric acid
- 4. Distilled water
2. The energy, found in dry cell is- (3)
- 1. Mechanic
- 2. Electric
- 3. Chemical
- 4. Electromagnetic
3. A pungent smell often present near the urinals is due to- (3)
- 1. Sulphur-di-oxide
- 2. Chlorine
- 3. Ammonia
- 4. Urea
4. Which chemical substance is used for making rat poison? (3)
- 1. Ethyl Alcohol
- 2. Methyl Isocyanate
- 3. Potassium Cyanide
- 4. Ethyl Isocyanide
5. Which gas is used in fire extinguisher? (1)
- 1. Carbon dioxide
- 2. Hydrogen
- 3. Oxygen
- 4. Sulphur dioxide
