Chemistry WCH16/01 October 2023 | Edexcel International A Level Past Papers With Mark Scheme

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1. Pungent gas produced from calcium oxide and its reaction with damp litmus paper.
2. Functional groups in compound B.
3. Observations for tests with sodium hydrogencarbonate, acidified potassium dichromate, 2,4-dinitrophenylhydrazine, Fehling′s solution, and iodine solution.
4. Explanation of why water is used as a solvent for ethanedioic acid extraction.
5. Detection of end-points in titration with sodium hydroxide and cerium(IV) sulfate.
6. Percentage yield calculation and reasoning for less than 100% yield in nitration of methyl benzoate.

Edexcel International AS/A Level Chemistry (WCH) Oct 2023

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Chemistry WCH16/01 October 2023 | Edexcel International A Level Past Papers With Mark Scheme

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