AS & A Level Chemistry (9701) — May–June 2023, Paper 41
8 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →Group 2 nitrates decompose when heated. Describe how the thermal stability of Group 2 nitrates changes with increasing proton number. Explain your answer.
Answer this question and get it marked →Some transition element complexes can show stereoisomerism. State two types of stereoisomerism shown by transition element complexes.
Answer this question and get it marked →Aqueous acidified iodate(V) ions, IO₃⁻, react with iodide ions: IO₃⁻ + 6H⁺ + 5I⁻ → 3I₂ + 3H₂O. The initial rate of this reaction is investigated; Table 3.1 gives the results. The…
Answer this question and get it marked →State the hybridisation of the carbon atoms and the C–C–H bond angle in benzene, C₆H₆. Explain how orbital overlap leads to the formation of σ and π bonds in benzene.
Answer this question and get it marked →The exhaust systems of most modern gasoline-fuelled cars contain a catalytic converter with three metal catalysts. These metals act as heterogeneous catalysts. Name three metal…
Answer this question and get it marked →Compound H has the structural formula CH₂=CHCH(NH₂)COOH. Name all the functional groups in H.
Answer this question and get it marked →State the relative basicities of ethanamide, diethylamine and ethylamine in aqueous solution. Explain your answer.
Answer this question and get it marked →Complete Table 8.1 by placing one tick in each row to indicate the sign of each type of energy change under standard conditions: lattice energy, enthalpy change of hydration, and…
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