Science Combined 0653: C11. Air and water Topical Past Paper Questions
Cambridge IGCSE Science Combined (0653) past-paper questions on C11. Air and water, free. This topic is frequently examined across 26 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
The list shows four fractions obtained from petroleum. ## bitumen diesel oil naphtha efinery gas (a) Each fraction contains molecules of different chain length. Place these fractions in order of increasing chain length. shortest chain length $\longrightarrow$ longest chain length…
Group VII elements are known as the halogens. (a) (i) Halogens can be represented by the formula $ X_{2} $. State the term used to describe molecules with the formula $ X_{2} $. [1] (ii) Complete Table 5.1: • state the appearance of bromine at room temperature and pressure (r.t.p…
(a) Fig. 5.1 is a pie chart showing the composition of clean air. Fig. 5.1 Identify the gases in clean air by completing the key for the pie chart shown in Fig. 5.1. Key (c) Carbon dioxide is a gas. (i) Carbon dioxide forms during the thermal decomposition of calcium carbonate. C…
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