AS & A Level Chemistry (9701) — February–March 2023, Paper 22
4 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →The Pauling electronegativity values of elements can be used to predict the chemical properties of compounds. Use the information in Table 1.1 to answer the following questions.…
Answer this question and get it marked →The Group 2 elements Mg to Ba are all silvery-white reactive metals. Draw a labelled diagram to show the bonding and structure of the Group 2 metals at room temperature.
Answer this question and get it marked →Alkenes undergo an addition reaction with a 1:1 mixture of CO and H2 to form aldehydes. Fig. 3.1 shows the reaction of propene with a 1:1 mixture of CO and H2: propene reacts to…
Answer this question and get it marked →Fig. 4.1 shows some reactions of compound D, 2-bromobutane. State the reagent and conditions used to form E in reaction 1.
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