Section 10. Chemistry of the environment for Chemistry, O Level - revisedeck

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10. Chemistry of the environment

A section of Chemistry, 5070

Listing 10 of 235 questions

What is removed or destroyed when water is desalinated to make it drinkable?

5070_w17_qp_11

MCQ

2017

Paper 1, Variant 1

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Why is chlorine added to the water supply?

5070_w17_qp_12

MCQ

2017

Paper 1, Variant 2

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Several different treatments are used to purify the water supply. Which impurities can be removed by which treatment?

5070_w18_qp_12

MCQ

2018

Paper 1, Variant 2

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Which statement gives reasons why ammonium sulfate can be used as a fertiliser?

5070_w19_qp_11

MCQ

2019

Paper 1, Variant 1

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Which statements are correct?

5070_w21_qp_12

MCQ

2021

Paper 1, Variant 2

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Carbon is used in the purification of the water supply. What is the reason for this?

5070_w22_qp_11

MCQ

2022

Paper 1, Variant 1

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The domestic water supply is treated to make it safe to drink. Which row identifies the treatment and its effect?

5070_w24_qp_11

MCQ

2024

Paper 1, Variant 1

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The table shows pollutants which cause eutrophication, sources of these pollutants and a problem that eutrophication causes. Which entry in the table is correct?

5070_s07_qp_1

MCQ

2007

Paper 1, Variant 0

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Which pollutant causes eutrophication in rivers?

5070_s16_qp_11

MCQ

2016

Paper 1, Variant 1

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Which ion is present in both sewage and fertilisers and can cause eutrophication when it enters rivers?

5070_s16_qp_12

MCQ

2016

Paper 1, Variant 2

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Questions Discovered

235