An introduction to AS Level organic chemistry: past paper questions
Real questions on an introduction to as level organic chemistry
The newest 16 of 16 written questions. Open one to see it on the real paper.
- 9701/41 · October/November 2025 · Q2b[1]
Define complex ion. (b) Aqueous solutions of iron( II ) salts contain the complex ion [Fe(H 2 O) 6 ] 2+ .
See it on the paper → - 9701/41 · October/November 2025 · Q2c(i)[1]
Suggest a suitable reagent for this conversion. State the type of reaction. reagent
See it on the paper → - 9701/42 · February/March 2025 · Q5d(ii)[1]
Draw the structure of organic compound Q in Fig. 5.4.
See it on the paper → - 9701/42 · February/March 2025 · Q5d(iii)[1]
Identify organic reagent R.
See it on the paper → - 9701/42 · February/March 2025 · Q5d(iv)[1]
Name the functional group that is formed in reaction 3.
See it on the paper → - 9701/43 · May/June 2023 · Q4b(i)[2]
Draw structures for X and Y in Fig. 4.1.
See it on the paper → - 9701/41 · October/November 2021 · Q5a(ii)[2]
The [MnCl 4 ] 2– complex does not contain any 180° bond angles. Draw a three-dimensional diagram to show the shape of the [MnCl 4 ] 2– complex. State one bond angle on your diagram. Mn
See it on the paper → - 9701/41 · October/November 2021 · Q5b(i)[2]
[Co(H 2 O) 6 ] 2+ and an excess of NaOH(aq) equation observation
See it on the paper → - 9701/52 · February/March 2021 · Q2a[4]
The student wants to make a 250.0 cm 3 aqueous solution of K a H b (C 2 O 4 ) c •d H 2 O, solution A. The student adds 1.89 g of K a H b (C 2 O 4 ) c •d H 2 O into a 100 cm 3 beaker. Describe the next steps the student should take to make solution A, containing exactly 1.89 g of K a H b (C 2 O 4 ) c •d H 2 O. Give...
See it on the paper → - 9701/52 · February/March 2021 · Q2b(i)[1]
When emptying the pipette in step 2, the student touches the surface of the solution in the flask with the tip of the pipette. Suggest why the student does this.
See it on the paper → - 9701/52 · February/March 2021 · Q2b(ii)[1]
Suggest the most appropriate piece of apparatus to measure H 2 SO 4 (aq) in step 3.
See it on the paper → - 9701/52 · February/March 2021 · Q2b(iii)[1]
Suggest why the student starts each titration with an initial burette reading of 0.10 cm 3 rather than the usual 0.00 cm 3 .
See it on the paper → - 9701/52 · February/March 2021 · Q2b(iv)[1]
What is meant by the term concordant readings?
See it on the paper → - 9701/52 · February/March 2021 · Q2b(v)[1]
State the change of colour seen in the mixture in the conical flask at the end-point. from to
See it on the paper → - 9701/42 · February/March 2020 · Q2b(iii)[1]
Cryolite can be made from SiF 4 . The first step in this conversion is the reaction of SiF 4 with H 2 O, forming H 2 SiF 6 and SiO 2 . Write an equation for this reaction. [Total: 11]
See it on the paper → - 9701/22 · May/June 2019 · Q5a(iv)[1]
State one other possible use for V, apart from as a food flavouring.
See it on the paper →
What examiners said
Most candidates drew 2,4,6-tribromophenol. Some incorrectly gave the mono-brominated phenol.
— Examiner report, February/March 2025, 9701/42 Q5(d)(ii) (Cambridge)
Many candidates knew the structure for the benzene diazonium ion, however placed the positive charge on the wrong nitrogen.
— Examiner report, February/March 2025, 9701/42 Q5(d)(iii) (Cambridge)
This was answered well by many candidates. Diazo and diazonium group were common incorrect answers.
— Examiner report, February/March 2025, 9701/42 Q5(d)(iv) (Cambridge)
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