1) Which of the following represents the products of the reaction between metal and acid? a) salt + water b) salt + hydrogen c) salt + water+ carbon dioxide 2) Which of the following is the most reactive metal? a) Magnesium b) Sodium c) Potassium 3) What is the name of the salt formed from the reaction of sulphuric acid with iron? a) iron sulphite b) iron sulphide c) iron sulphate 4) What is the difference between polymer and any other substances? a) they are macromolecules b) they have repeated patterns c) they are made of carbon 5) One of the following is a use for PVC a) plastic bags b) water pipes c) medical tubes 6) Which of the following polymers is the best for non stick pans? a) polypropene b) polyethene c) Teflon 7) GRP is a composite material and it means a) Great Rubber Plastic b) Glass Rigid Plastic c) Glass Reinforced Plastic 8) Which of the following gases is responsible for acid rains? a) Carbon dioxide b) Sulphur dioxide c) Methane 9) Which of the following gases is responsible for global warming? a) Carbon dioxide b) water vapour c) methane d) All of the above 10) Which human activity can lead to releasing toxic gases to the environment? a) landfills b) incineration c) burning fossil fuels

Multiple choice - Year 9

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