iGCSE Chemistry Multiple Choice (Extended) : 10.2 Fertilisers: Exam Style Questions Paper 2

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iGCSE Chemistry MCQ (Extended) Paper 2 - All Chapters

Question

Fertilizers are used to provide three of the elements needed for plant growth.

Which two compounds would give a fertilizer containing all three of these elements?

  1. Ca(NO3)2 and (NH4)2SO4
  2. Ca(NO3)2 and (NH4)3PO4
  3. KNO3 and (NH4)2SO4
  4. KNO3 and (NH4)3PO4
Answer/Explanation

Ans:

D

Question

 Which statements about sulfur dioxide are correct?

  1. Sulfur dioxide decolourises acidified potassium manganate(VII).
  2. Sulfur dioxide forms when acids react with carbonates.
  3. Sulfur dioxide is used as a bleach.
  4. Sulfur dioxide is used to treat acidic soil.

A 1 and 3               B 1 and 4                C 2 and 3                 D 2 and 4

Answer/Explanation

Ans:

A

Question

Which combination of chemical compounds can be used to produce the fertiliser shown?

A \((NH_4)_3PO_4, KCl\)
B \(NH_4NO_3, Ca_3(PO_4)_2\)
C \(NH_4NO_3, CO(NH_2)_2\)
D \(NH_4NO_3, K_2SO_4, (NH_4)2SO_4\)

Answer/Explanation

Ans: A

Question

 Fertilisers are mixtures of different compounds used to increase the growth of crops.
Which pair of substances contain the three essential elements for plant growth?
A ammonium nitrate and calcium phosphate
B ammonium nitrate and potassium chloride
C ammonium phosphate and potassium chloride
D potassium nitrate and calcium carbonate

Answer/Explanation

Ans: C

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