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A. Tick ( the most appropriate answer.1. Which of these is a property of metals?(a) Ductility(b) Sonority(c) Lustre(d) All of these2. The elements which have 4 electrons in their valence shell are(a) non-metals(b) metals(c) metalloids(d) None of these3. Which of these is a noble metal?(a) Aluminium(b) Gold(c) Copper(d) Mercury4. Which non-metal is a good conductor of electricity?(a) Gold(b) Silver(c) Graphite(d) Bakelite5. Which non-metal is used in the fireworks industry?(a) Aluminium(b) Phosphorus(c) Hydrogen(d) Silicon6. A metal found in liquid state at room temperature is(a) gold(b) mercury(c) silver(d) None of these |
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Answer» c d d c b b Explanation: |
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