The newest 10 of 8 written questions. Open one to see it on the real paper.
State the name of a suitable acid and the name of a suitable alkali for this reaction. acid (c) Sodium chloride is also made by the neutralisation of an acid with an alkali.
See it on the paper →Sodium chloride is made by reacting an acid with a base. State the name of the acid and the base that are used. acid base
See it on the paper →Acid rain also causes acidic soil. Name the chemical substance used by farmers to treat acidic soil.
See it on the paper →State the name of the type of reaction that occurs when the substance you have named in (d)(ii) is added to acidic soil.
See it on the paper →Why do farmers add limestone to soil?
See it on the paper →Explain why farmers often treat soil with limestone.
See it on the paper →Complete the word equation for the neutralisation reaction between an acid and a base. acid + + base
See it on the paper →Which substances neutralise acids?
See it on the paper →Few candidates were able to name a suitable acid and base. The most popular suggestions were sodium and chloride or chlorine.
— Examiner report, February/March 2024, 0654/32 Q2(b) (Cambridge)
Calcium carbonate or limestone was a popular and correct answer. Fertiliser was often incorrectly suggested.
— Examiner report, February/March 2024, 0654/32 Q5(d)(ii) (Cambridge)
Neutralisation was well known as the type of reaction. Popular incorrect answers were endothermic and fertilisation.
— Examiner report, February/March 2024, 0654/32 Q5(d)(iii) (Cambridge)
Past papers, syllabus and examiner reports © UCLES (Cambridge University Press & Assessment). Questions are matched to topics from the official syllabus. AssessPro is independent and not endorsed by Cambridge.
State the alkaline solution and the dilute acid that react to produce sodium chloride. alkaline solution dilute acid
hydrochloric acid Complete the word equation for this reaction. + calcium carbonate + +
See it on the paper →