CAIE IGCSE Chemistry 10.2 Fertilisers Topic Practice

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Covered syllabus points

10.2.1—Ammonium salts and nitrates are used10.2.2—Use of NPK fertilisers to provide the

Question 1

[Maximum number: 1]

Which statement about sulfuric acid is correct?

A

It is made by the Haber process.

B

It is made in the atmosphere by the action of lightning.

C

It reacts with ammonia to produce a fertiliser.

D

It reacts with copper metal to produce hydrogen gas.

Question 2

[Maximum number: 1]

Fertilisers are used to provide three of the elements needed for plant growth.
Which two compounds would give a fertiliser containing all three of these elements?

A

Ca(NO3)2\mathrm{Ca}\left(\mathrm{NO}_{3}\right)_{2} and (NH4)2SO4\left(\mathrm{NH}_{4}\right)_{2} \mathrm{SO}_{4}

B

Ca(NO3)2\mathrm{Ca}\left(\mathrm{NO}_{3}\right)_{2} and (NH4)3PO4\left(\mathrm{NH}_{4}\right)_{3} \mathrm{PO}_{4}

C

KNO3\mathrm{KNO}_{3} and (NH4)2SO4\left(\mathrm{NH}_{4}\right)_{2} \mathrm{SO}_{4}

D

KNO3\mathrm{KNO}_{3} and (NH4)3PO4\left(\mathrm{NH}_{4}\right)_{3} \mathrm{PO}_{4}

Question 3

[Maximum number: 1]

Which statement about sulfuric acid is correct?

A

It is made by the Haber process.

B

It is made in the atmosphere by the action of lightning.

C

It reacts with ammonia to produce a fertiliser.

D

It reacts with copper metal to produce hydrogen gas.

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