| 1 |
Which substance is used ot bleach the pulp. |
- A. Na2SO3
- B. NaCl
- C. NaClO
- D. NaOH
|
| 2 |
The word paper is derived from the name of which reedy plant |
- A. Rose
- B. Sun flower
- C. Papyrus
- D. Water
|
| 3 |
Ammonia is prepared industrially by |
- A. Contact process
- B. Ostwald process
- C. Birkland Eyed process
- D. Heber process
|
| 4 |
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
|
| 5 |
Which elements are needed for healthy growth of plants |
- A. N,S,P
- B. N,Ca,P
- C. N,P,K
- D. N,K,C
|
| 6 |
Cement is a mixture of |
- A. Clay and clinker
- B. Clay, lime stone and gypsum
- C. Lime stone and gypsum
- D. Lime stone and clay
|
| 7 |
Setting process of cement is based upon |
- A. Hydrolysis
- B. Hydration
- C. Dehydration
- D. Botha a and b
|
| 8 |
Which woody raw material is used for the manufacture of paper pulp. |
- A. Cotton
- B. Bagasse
- C. Poplar
- D. Rice straw
|
| 9 |
In Pakistan, the total consumption of paper per person per year is. |
- A. 2 kg
- B. 5 kg
- C. 7 kg
- D. 10 kg
|
| 10 |
Micro nutrients are required in quantity ranging from |
- A. 4 g - 40 g
- B. 6 g -200 g
- C. 6kg - 200 kg
- D. 4 kg - 40 kg
|