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7. Acids, bases and salts
A section of Chemistry, 0620
Listing 10 of 506 questions
Some oxides of some elements are listed. CO CO2 Na2O MgO Al 2O3 SiO2 P4O10 SO2 Cl 2O7 Cr2O3 Answer the following questions using only oxides from the list. Each oxide may be used once, more than once or not at all. Give the formula of an oxide which is the main cause of acid rain, which would give a solution of pH 14 when added to water, which is coloured, which is the major impurity in iron ore, which is amphoteric, which is neutral. Amphoteric oxides and neutral oxides are different from each other. What is meant by the term amphoteric oxide? What is meant by the term neutral oxide?
0620_s17_qp_41
THEORY
2017
Paper 4, Variant 1
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Questions Discovered
506