Questions as text
Q1 · Which process is used in water treatment to kill bacteria? 0652/11 Oct/Nov 2005
16 Which process is used in water treatment to kill bacteria? A adding lime B chlorination C crystallisation D filtration
1 marks
Answer: B
This question in 0652/11 Oct/Nov 2005
Q2 · Which three elements should a balanced fertiliser contain? 0652/11 Oct/Nov 2006
17 Which three elements should a balanced fertiliser contain? A Na, C, P B Na, P, K C K, C, N D K, P, N
1 marks
Answer: D
This question in 0652/11 Oct/Nov 2006
Q3 · Sodium chloride is mined from underground rock salt by using hot water 0652/11 Oct/Nov 2008
16 Sodium chloride is mined from underground rock salt by using hot water. Which term describes the use of water in this process? A electrolyte B filtrate C solute D solvent
1 marks
Answer: D
This question in 0652/11 Oct/Nov 2008
Q4 · Chlorine is added to water to make it safe to drink 0652/11 Oct/Nov 2010
17 Chlorine is added to water to make it safe to drink. At which stage is chlorine added to the water? rain cloud river reservoir house tap A B C D
1 marks
Answer: C
This question in 0652/11 Oct/Nov 2010
Q5 · Which statements about water are correct? 0652/11 Oct/Nov 2011
16 Which statements about water are correct? 1 Water can be used as a solvent. 2 Water can be used to prevent iron from rusting. 3 Water is a compound that contains two parts of oxygen to one part of hydrogen. A 1 only B 2 only C 1 and 3 D 2 and 3
1 marks
Answer: A
This question in 0652/11 Oct/Nov 2011
Q6 · Which statements about water are correct? 0652/12 Oct/Nov 2011
15 Which statements about water are correct? 1 Water can be used as a solvent. 2 Water can be used to prevent iron from rusting. 3 Water is a compound that contains two parts of oxygen to one part of hydrogen. A 1 only B 2 only C 1 and 3 D 2 and 3
1 marks
Answer: A
This question in 0652/12 Oct/Nov 2011
Q7 · Which colour change is observed when water is added to anhydrous copper(II) sulfate? 0652/11 Oct/Nov 2014
14 Which colour change is observed when water is added to anhydrous copper(II) sulfate? A blue to pink B blue to white C pink to blue D white to blue
1 marks
Answer: D
This question in 0652/11 Oct/Nov 2014
Q8 · Which colour change is observed when water is added to anhydrous copper(II) sulfate? 0652/12 Oct/Nov 2014
14 Which colour change is observed when water is added to anhydrous copper(II) sulfate? A blue to pink B blue to white C pink to blue D white to blue
1 marks
Answer: D
This question in 0652/12 Oct/Nov 2014
Q9 · Which substance can be used as a chemical test for water? 0652/11 Oct/Nov 2015
14 Which substance can be used as a chemical test for water? A anhydrous copper sulfate B hydrated cobalt chloride C hydrated copper sulfate D pink cobalt chloride
1 marks
Answer: A
This question in 0652/11 Oct/Nov 2015
Q10 · Which substance can be used as a chemical test for water? 0652/12 Oct/Nov 2015
14 Which substance can be used as a chemical test for water? A anhydrous copper sulfate B hydrated cobalt chloride C hydrated copper sulfate D pink cobalt chloride
1 marks
Answer: A
This question in 0652/12 Oct/Nov 2015
Q11 · Hydrated copper(II) sulfate is heated 0652/12 Oct/Nov 2016
16 Hydrated copper(II) sulfate is heated. Which type of reaction takes place and what is the colour of the product? type of reaction colour of product A irreversible blue B irreversible white C reversible blue D reversible white
1 marks
Answer: D
This question in 0652/12 Oct/Nov 2016
Q12 · Which statement about calcium oxide (lime) is correct? 0652/11 Oct/Nov 2018
17 Which statement about calcium oxide (lime) is correct? A It is manufactured by the action of heat on hematite. B It is manufactured by the action of heat on limestone. C It is used to increase the acidity of soils. D It is used to neutralise alkaline industrial waste.
1 marks
Answer: B
This question in 0652/11 Oct/Nov 2018
Q13 · Which statement about calcium oxide (lime) is correct? 0652/12 Oct/Nov 2018
17 Which statement about calcium oxide (lime) is correct? A It is manufactured by the action of heat on hematite. B It is manufactured by the action of heat on limestone. C It is used to increase the acidity of soils. D It is used to neutralise alkaline industrial waste.
1 marks
Answer: B
This question in 0652/12 Oct/Nov 2018
Q14 · Which substance is used as a chemical test for water? 0652/11 Oct/Nov 2019
15 Which substance is used as a chemical test for water? A anhydrous copper(II) sulfate B hydrated cobalt(II) chloride C hydrated copper(II) sulfate D pink cobalt(II) chloride
1 marks
Answer: A
This question in 0652/11 Oct/Nov 2019
Q15 · Which substance is used as a chemical test for water? 0652/12 Oct/Nov 2019
15 Which substance is used as a chemical test for water? A anhydrous copper(II) sulfate B hydrated cobalt(II) chloride C hydrated copper(II) sulfate D pink cobalt(II) chloride
1 marks
Answer: A
This question in 0652/12 Oct/Nov 2019
Q16 · Which of the statements about water are correct? 0652/11 Oct/Nov 2020
17 Which of the statements about water are correct? 1 Water is used as a solvent. 2 Water is used to prevent iron from rusting. 3 Water is a compound that contains two parts of oxygen to one part of hydrogen. A 1 only B 2 only C 1 and 3 D 2 and 3
1 marks
Answer: A
This question in 0652/11 Oct/Nov 2020
Q17 · Which colour change is observed when anhydrous copper(II) sulfate is added to water? 0652/11 Oct/Nov 2021
17 Which colour change is observed when anhydrous copper(II) sulfate is added to water? A blue to pink B blue to white C pink to blue D white to blue
1 marks
Answer: D
This question in 0652/11 Oct/Nov 2021
Q18 · How does the colour of anhydrous copper(II) sulfate change when water is added? 0652/11 Oct/Nov 2024
16 How does the colour of anhydrous copper(II) sulfate change when water is added? A blue to pink B blue to white C pink to blue D white to blue
1 marks
Answer: D
This question in 0652/11 Oct/Nov 2024
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