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chemistry igcse acapprinted 79 · PDF 79
145 pagesrevision 46934
printed 79 · PDF 79
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P4:
Q1. State which 2 oxides are responsible for acid rain.
Q2. Give the symbol of the element that is used to kill the microbes in water.
Q3. Name one gas which is responsible for both photochemical smog and acid rain.
Q4. Nitrogen dioxide and carbon monoxide are removed from a car exhaust by a catalytic
converter. Write the symbol equation for this reaction.
Q5. Name a Halide compound that can be used to test the presence of water.