0653.C7.1.01 — Describe the characteristic properties of acids in terms of their reactions with: (a).metals (b).bases (c).carbonates: past paper questions
Real questions on 0653.c7.1.01 — describe the characteristic properties of acids in terms of their reactions with: (a).metals (b).bases (c).carbonates
The newest 16 of 16 written questions. Open one to see it on the real paper.
- 0653/32 · May/June 2025 · Q5b[1]
Iron reacts with dilute hydrochloric acid. Write the word equation for the reaction. + +
See it on the paper → - 0653/42 · February/March 2025 · Q5b[1]
Explain the meaning of the symbol ( III ) in iron( III ) oxide.
See it on the paper → - 0653/32 · February/March 2024 · Q5c(ii)[1]
Calcium carbonate reacts with dilute hydrochloric acid to form carbon dioxide. Suggest a value for the pH of dilute hydrochloric acid. pH =
See it on the paper → - 0653/43 · October/November 2023 · Q2a(i)[3]
Complete Table 2.1.
See it on the paper → - 0653/62 · October/November 2023 · Q3[7]
Citric acid reacts with aqueous sodium hydroxide as shown in the word equation. citric acid + sodium hydroxide sodium citrate + water In the reaction, aqueous sodium hydroxide is neutralised by solid citric acid. Sodium hydroxide is an alkali. When citric acid is added to aqueous sodium hydroxide, the pH decreases as t...
See it on the paper → - 0653/12 · October/November 2022 · Q14[1]
Which statement is not correct?
See it on the paper → - 0653/12 · October/November 2022 · Q23[1]
Which statement is correct?
See it on the paper → - 0653/33 · October/November 2022 · Q5a(i)[2]
Complete the word equation for this reaction. magnesium + +
See it on the paper → - 0653/33 · October/November 2022 · Q5a(iv)[1]
Magnesium reacts with a different dilute acid to make magnesium sulfate. State the name of this acid.
See it on the paper → - 0653/61 · May/June 2022 · Q3a(i)[1]
Tick (3) the box to identify the negative ion (anion) present in dilute sulfuric acid. carbonate chloride nitrate sulfate
See it on the paper → - 0653/61 · May/June 2022 · Q3b(i)[1]
Name the gas made.
See it on the paper → - 0653/62 · February/March 2022 · Q1b(iv)[1]
Use your graph to estimate the surface area of the potato discs when the rate of reaction is 24 bubbles per minute. surface area of potato discs = cm 2
See it on the paper → - 0653/62 · February/March 2022 · Q1b(v)[1]
Identify one way the procedure in (b) is an improvement on the procedure in (a).
See it on the paper → - 0653/62 · February/March 2022 · Q1b(vi)[1]
Describe how the volume of oxygen gas made can be collected and measured.
See it on the paper → - 0653/62 · February/March 2022 · Q1b(vii)[1]
Describe a test to confirm that the gas made is oxygen. Include the observation for a positive result. test observation
See it on the paper → - 0653/62 · February/March 2022 · Q3[7]
Magnesium carbonate is a white solid that decomposes when heated. magnesium carbonate carbon dioxide + magnesium oxide Plan an investigation to find the relationship between the mass of magnesium carbonate heated and the volume of carbon dioxide made. You are provided with magnesium carbonate powder. You may use any co...
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What examiners said
Most candidates found this question demanding. It appeared that some candidates did not understand the structure of a word equation as many left all four boxes blank. The reactants, given in the question, go on the left of the arrow and the products go on the right. Some of the responses that were completed were correct. Others wrote water or carbon dioxide as a product instead of hydrogen. Candid...
— Examiner report, May/June 2025, 0653/32 Q5(b) (Cambridge)
Only some candidates were familiar with the terms ‘oxidation number’ or ‘oxidation state’. Alternative ways of stating the meaning by describing ideas which included the valency of iron, electron loss from iron, combining power of iron and iron’s ionic charge were accepted. Less detailed answers such as “it has lost three electrons” or “it can have more than one valency” or “this means ferric and...
— Examiner report, February/March 2025, 0653/42 Q5(b) (Cambridge)
Most candidates chose a pH value in the acceptable range. Incorrect responses included pH values of 7 or above.
— Examiner report, February/March 2024, 0653/32 Q5(c)(ii) (Cambridge)
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