Chemical Engineering - Fertiliser Technology
Exercise :: Fertiliser Technology - Section 1
| 16. |
Reaction of dilute sulphuric acid with phosphate rock produces |
| A. |
phosphoric acid | | B. |
superphosphate | | C. |
triple superphosphate | | D. |
gypsum |
Answer: Option A
Explanation:
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| 17. |
Phosphoric acid is produced in wet process from phosphate rock and |
| A. |
dilute H2SO4 | | B. |
concentrated H2SO4 | | C. |
concentrated NHO3 | | D. |
concentrated HCl |
Answer: Option A
Explanation:
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| 18. |
Base suspension fertiliser essentially contains |
| A. |
13% N2 and 43% P2O5 | | B. |
43% N2 and 13% P2O5 | | C. |
43% N2 and 13% K2O | | D. |
43% K2O and 43% P2O5 |
Answer: Option A
Explanation:
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| 19. |
Conditioners like finely divided peat are added to the fertiliser to |
| A. |
counteract burning. | | B. |
avoid caking & hardening. | | C. |
produce bulk. | | D. |
increase its solubility. |
Answer: Option B
Explanation:
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| 20. |
Liquid ammonia is not used as such a fertiliser in tropical countries like India, because |
| A. |
its N2 content is very low. | | B. |
it is very costly. | | C. |
it will evaporate on spraying. | | D. |
it is not available. |
Answer: Option C
Explanation:
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