Science A, Combined (9-1) - Gateway Science Suite J250 9-1: C2: Elements, compounds and mixtures Topical Past Paper Questions
OCR GCSE (9-1) Science A, Combined (9-1) - Gateway Science Suite J250 (9-1) past-paper questions on C2: Elements, compounds and mixtures, free. This topic is frequently examined across 6 exam sessions. Sign in for the full topic-segregated question bank and AI worksheets.
Sample questions
Crude oil is a mixture of useful hydrocarbons which are separated into fractions. (a) Which statement describes why crude oil is called a feedstock for the petrochemical industry? Tick one (✓) box. It's a naturally occurring finite resource. It's a source of environmentally frien…
Magnesium, calcium and strontium are metals in Group 2 of the Periodic Table. Tables 14.1 and 14.2 show some information about these metals. Table 14.1 ## Reactions of the metals with cold water Table 14.2 Energy required to form a 2+ ion Barium is below strontium in Group 2. Des…
Carbon dioxide, $ CO_{2} $, is a covalently bonded molecule. (a) Explain what is meant by a covalent bond. [2] (b) Look at the diagram. It shows the structure of carbon dioxide. $$ \bigcirc\xlongequal{\quad}C\xlongequal{\quad}\bigcirc $$ Complete the dot and cross diagram for car…
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Full C2: Elements, compounds and mixtures question set, mark schemes and AI worksheets
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