TRB MODEL QUESTIONS FOR CHEMISTRY
| 11. |
Petroleum is a |
| |
- A. Mixture
- B. Solution
- C. Compound
- D. Suspension
|
| 12. |
Which of the following is used as domestic fuel? |
| |
- A. Kerosene
- B. Petrol
- C. L.P.G
- D. L.P.G. + Kerosene
|
| 13. |
The vitamin that helps in the clotting of blood is |
| |
- A. Vitamin A
- B. Vitamin B
- C. Vitamin D
- D. Vitamin K
|
| 14. |
The number of electrons required by carbon to achieve stable configuration is |
| |
- A. one
- B. two
- C. three
- D. four
|
| 15. |
Which of the following is used as petrol? |
| |
- A. Heavy oil
- B. Gasoline
- C. Naphtha
- D. Paraffin oil
|
