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METAL NON-METAL, 1. Which of the following is not a metal?, (a) Copper (b) Sulphur (c) Aluminium (d) Iron, 2. Materials which can be drawn into wires are called ductile. Which of the •, following is not a ductile material?, (a) Silver (b) Copper (c) Sulphur (d) Aluminium, 3. Metals are generally hard. Which of the following metals is an exception!, and can be cut with a knife?, (a) Iron (b) Sodium (c) Gold (d) Magnesium, 4. Which of the following reacts with cold water vigorously?, (a) Carbon (b) Sodium (c) Magnesium (d) Sulphur, 5. Name two soft metals which can be cut with a knife., 6. Name two major non-metals which are present in fertilizers and enhance, the growth of plants., 7. Which non-metal is used to disinfect water?, 8. Why are bells made of metals?, 9. Which liquid metal is used for making thermometers?, 10.Which of the following metals can displace the other two metals from, their salt solutions? Zinc, iron, copper, 11.A doctor prescribed a tablet to a patient suffering from iron deficiency., The tablet does not look like iron. Explain., 12.State whether the following statement are True/False., a) The property of metals by virtue of which they can be drawn into wires, is called ductility., b) Metals are good conductors of electricity but poor conductor of heat., c) Articles made up of metals produce ringing sound when struck hard., d) Oxides of non-metals and metals are acidic in nature., e) A less reactive metal displaces a more reactive metal from its salt, solution in water.