IGCSE Chemistry (0620) — October–November 2024, Paper 42
6 questions · every question answerable online with instant point-by-point AI marking against the official mark scheme.
Start with Question 1 →The formulae of the molecules A to I are shown in Table 1.1: A C2H4; B C2H5OH; C CO; D CO2; E Cl2; F NO2; G N2; H O2; I SO2. Answer the following questions about the molecules A…
Answer this question and get it marked →Aluminium is manufactured by the electrolysis of aluminium oxide. State the name of the main ore of aluminium.
Answer this question and get it marked →Sulfur forms two chlorides, P and Q. Chloride P has the formula S2Cl2. Chloride Q has the formula SCl2. Both chlorides are covalently bonded and have low melting points. Suggest,…
Answer this question and get it marked →Silver bromide, AgBr, is made when aqueous silver ethanoate, CH3COOAg, is added to aqueous sodium bromide, NaBr. The equation is shown in equation 1: CH3COOAg + NaBr → CH3COONa +…
Answer this question and get it marked →Alkenes are manufactured by cracking larger alkane molecules. State the source of the large alkane molecules used in cracking.
Answer this question and get it marked →Polyamides and polyesters are polymers. Polyamides can occur naturally or can be manufactured. Part of the structure of a polyamide is shown in Fig. 6.1 (a chain showing repeating…
Answer this question and get it marked →← October–November 2024 Paper 43 · October–November 2024 Paper 41 →