Class 12 Chemistry · Chapter 16 · Test 2
Agriculture
50 MCQs
50 questions · 40 min · 50 marks
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Sample questions
The first 5 of 50. Try each one, then tap to see the answer.
Question 1
Fertilizers are chemicals that:
- AProvide essential nutrients to plants to promote growth and increase crop yields
- BKill pests
- CNeutralise acid rain
- DCause soil erosion
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Answer: A
They replenish depleted soil and ensure better food production.
Question 2
Synthetic fertilizers are made by:
- AComposting plants
- BMining only
- CChemical processes such as the Haber-Bosch process for ammonia
- DUsing animal manure
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Answer: C
They are man-made.
Question 3
Organic fertilizers come from:
- AThe Haber-Bosch process
- BNatural gas
- CMines
- DNatural sources such as compost or animal manure
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Answer: D
They differ from synthetic fertilizers in origin.
Question 4
How many macronutrients are listed for plants in the text?
- AFive
- BSix
- CSeven
- DNine
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Answer: D
They are C and H and O and N and P and S and K and Ca and Mg.
Question 5
Which of the following is a micronutrient for plants?
- AZinc
- BNitrogen
- CPotassium
- DCarbon
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Answer: A
The micronutrients are B and Fe and Cu and Cl and Mn and Mo and Zn.
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