Entry Test MCQ :: Common Chemical Industries
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| 1. |
The fertility of the soil is improved by |
| A. |
Rotation of the crops |
B. |
Adding lime to the acid salts |
| C. |
Adding manure and growing legumes |
D. |
All |
Answer: Option D
Explanation:
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| 2. |
Which of the following is incorrect statement about nitrogen importance? |
| A. |
It enhances plant growth |
B. |
It is involved in the synthesis of protein and nucleic acids |
| C. |
it accelerates fruits and flowers growth |
D. |
It is involved in the chlorophyll synthesis |
Answer: Option C
Explanation:
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| 3. |
The fertilizers which provide single nutrient from NPK are called ______ fertilizer. |
| A. |
straight |
B. |
compound |
| C. |
both a and b |
D. |
none of the above |
Answer: Option A
Explanation:
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| 4. |
Which of the following is macronutrient? |
Answer: Option C
Explanation:
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| 5. |
Addition of urea to the soil is _________ reaction. |
| A. |
endothermic |
B. |
exothermic |
| C. |
both a and b |
D. |
no heat energy is involved |
Answer: Option B
Explanation:
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| 6. |
Which of the following is the most suitable catalyst for ammonia synthesis? |
| A. |
Pt |
B. |
ZnO + Cr2O3 |
| C. |
Fe in fused mixture of Al2O3 + SiQ2 + MgO |
D. |
All of the above |
Answer: Option C
Explanation:
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| 7. |
The cooling of molten urea by air in the tower is called |
| A. |
prilling |
B. |
evaporation |
| C. |
condensation |
D. |
crystallization |
Answer: Option A
Explanation:
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| 8. |
Which of the following fertilizers is not useful for paddy rice? |
| A. |
urea |
B. |
DAP |
| C. |
Ammonium sulphate |
D. |
Ammonium nitrate |
Answer: Option D
Explanation:
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| 9. |
DAP (Diammonium hydrogen phosphate) contains _________ plant nutrients. |
Answer: Option D
Explanation:
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| 10. |
Which of the following potassium fertilizers are more useful for horticultural crops tobacco & potatoes? |
Answer: Option B
Explanation:
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