TRB MODEL QUESTIONS FOR CHEMISTRY
| 36. |
The colour of the gas liberated when lead nitrate heated is |
| |
- A. Colourless
- B. Yellow
- C. Brown
- D. Red
|
| 37. |
The growing plants need which one of the following elements in largest quantity? |
| |
- A. Nitrogen
- B. Phosphorous
- C. Calcium
- D. Ammonia
|
| 38. |
Which carbohydrate is NOT a hexose? |
| |
- A. Lactose
- B. Glucose
- C. Fructose
- D. Mannose
|
| 39. |
The chemical used in the washing of film rolls is |
| |
- A. Soda Lime
- B. Sodium Hydrogen
- C. Sodium Thiosulphate
- D. Sodium Chloride
|
| 40. |
The type of bond in Calcium chloride is |
| |
- A. Ionic Bond
- B. Covalent Bond
- C. Co–ordinate Bond
- D. Dative Bond
|
