| 1 |
The nitrogen present in some fertilizers helps plants |
- A. to fight against diseases
- B. to produce fat
- C. to undergo photosynthesis
- D. to produce protien
|
| 2 |
The word paper is derived from the name of which reedy plant |
- A. Rose
- B. Sun flower
- C. Papyrus
- D. Water
|
| 3 |
During pulp making, the pH of digester is maintained at. |
- A. 1-2
- B. 3-5
- C. 6-8
- D. 7-9
|
| 4 |
Which substance is used ot bleach the pulp. |
- A. Na2SO3
- B. NaCl
- C. NaClO
- D. NaOH
|
| 5 |
Which woody raw material is used for the manufacture of paper pulp |
- A. Cotton
- B. Biogases
- C. Rice straw
- D. Poplar
|
| 6 |
Micronutrients for plant are those which |
- A. Are required in very large amount
- B. Are required in very small amount
- C. Are produced from plants in very small amount
- D. Retard the growth of plants
|
| 7 |
Setting process of cement is based upon |
- A. Hydrolysis
- B. Hydration
- C. Dehydration
- D. Botha a and b
|
| 8 |
The word paper is derived from the name of which reed plant. |
- A. Rose
- B. Sun flower
- C. Papyrus
- D. Water Hyacinth
|
| 9 |
Which is not a calcarious material. |
- A. Lime
- B. Clay
- C. Marble
- D. Marine shell
|
| 10 |
Which one of the following is the macronutrient for plants. |
- A. Boron
- B. Zinc
- C. Calcium
- D. Nitrogen
|