Questions as text
Q1 · Rubidium is below potassium in Group I of the Periodic Table 0654/21 Oct/Nov 2017
21 Rubidium is below potassium in Group I of the Periodic Table. Which row describes the properties of rubidium? melting point reaction with water A higher than potassium faster than potassium B higher than potassium slower than potassium C lower than potassium faster than potassium D lower than potassium slower than potassium
1 marks
Answer: C
This question in 0654/21 Oct/Nov 2017
Q2 · Which statement about Group I elements is not correct? 0654/22 Oct/Nov 2017
20 Which statement about Group I elements is not correct? A Caesium and rubidium are electrical conductors. B Caesium is softer than lithium. C Potassium has a higher melting point than rubidium. D Sodium is more reactive than rubidium.
1 marks
Answer: D
This question in 0654/22 Oct/Nov 2017
Q3 · Information about three Group I elements is shown 0654/21 Oct/Nov 2019
24 Information about three Group I elements is shown. melting the formula of point / °C the oxides lithium 180 Li2O sodium 98 Na2O potassium 63 K2O Rubidium is below potassium in Group I. Which statements about rubidium are correct? 1 The formula of rubidium oxide is Rb2O. 2 Rubidium is more dense than potassium. 3 Rubidium’s melting point is greater than 63 °C. 4 The formula of rubidium hydroxide is Rb(OH)2. A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4
1 marks
Answer: A
This question in 0654/21 Oct/Nov 2019
Q4 · Substance Q is added to cold water 0654/21 May/June 2021
21 Substance Q is added to cold water. It floats on the water and hydrogen gas is made. What is Q? A iodine B lithium C magnesium D zinc
1 marks
Answer: B
This question in 0654/21 May/June 2021
Q5 · Which row describes trends in the properties of Group I elements as the group is… 0654/22 May/June 2021
21 Which row describes trends in the properties of Group I elements as the group is descended? melting point reactivity with water A decreasing decreasing B decreasing increasing C increasing decreasing D increasing increasing
1 marks
Answer: B
This question in 0654/22 May/June 2021
Q6 · When a small piece of potassium is placed in water, hydrogen gas is given off very quickly 0654/21 Oct/Nov 2021
20 When a small piece of potassium is placed in water, hydrogen gas is given off very quickly. Which element reacts in a similar way? A copper B iron C magnesium D sodium
1 marks
Answer: D
This question in 0654/21 Oct/Nov 2021
Q7 · Which statement about the elements in Group I and in Group VII of the Periodic Table is… 0654/23 Oct/Nov 2021
21 Which statement about the elements in Group I and in Group VII of the Periodic Table is correct? A Chlorine has a darker colour than iodine. B Each molecule of a halogen contains one atom. C Potassium reacts with cold water more vigorously than lithium. D The melting point of lithium is lower than the melting point of sodium.
1 marks
Answer: C
This question in 0654/23 Oct/Nov 2021
Q8 · Which row about the trends in the elements going down Group I of the Periodic Table is… 0654/22 Feb/March 2022
20 Which row about the trends in the elements going down Group I of the Periodic Table is correct? reactivity melting point A decreases decreases B decreases increases C increases decreases D increases increases
1 marks
Answer: C
This question in 0654/22 Feb/March 2022
Q9 · Potassium is in Group I of the Periodic Table 0654/21 Oct/Nov 2023
22 Potassium is in Group I of the Periodic Table. Which statement about potassium is correct? A It is a relatively hard metal. B It is less dense than lithium. C It has a higher melting point than sodium. D It reacts more vigorously with water than sodium.
1 marks
Answer: D
This question in 0654/21 Oct/Nov 2023
Q10 · The elements in Group I of the Periodic Table are metals 0654/23 Oct/Nov 2023
21 The elements in Group I of the Periodic Table are metals. What are the trends as the group is descended? A decrease in melting point and less reactive with water B decrease in melting point and more reactive with water C increase in melting point and less reactive with water D increase in melting point and more reactive with water
1 marks
Answer: B
This question in 0654/23 Oct/Nov 2023
Q11 · Which description of the Group I elements is correct? 0654/22 Feb/March 2024
22 Which description of the Group I elements is correct? A relatively hard metals B relatively soft metals C low melting point non-metals D unreactive gases
1 marks
Answer: B
This question in 0654/22 Feb/March 2024
Q12 · Which row describes the trends shown by the Group I elements lithium to potassium? 0654/22 Feb/March 2025
20 Which row describes the trends shown by the Group I elements lithium to potassium? trend in trend in reaction melting point with water A decrease decrease B decrease increase C increase decrease D increase increase
1 marks
Answer: B
This question in 0654/22 Feb/March 2025
Q13 · Substance Q is added to cold water 0654/21 Oct/Nov 2025
20 Substance Q is added to cold water. Q floats on the water and hydrogen gas is made. What is Q? A iodine B lithium C magnesium D zinc
1 marks
Answer: B
This question in 0654/21 Oct/Nov 2025
Q14 · The melting points of some Group I metals are shown 0654/23 Oct/Nov 2025
18 The melting points of some Group I metals are shown. melting point element / °C caesium 28 potassium 64 rubidium – sodium 98 What is the melting point of rubidium? A 20 °C B 40 °C C 80 °C D 100 °C
1 marks
Answer: B
This question in 0654/23 Oct/Nov 2025
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