7. metal and non metal

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1. 1. Which property of metals is useful to form thin sheets ? 1) Expansion 2) Malleability 3) Conduction of Heat 4) Ductility

2. Which one of the following is metal? Gold, silver, iron, copper 1) iron and copper 2) copper 3) Gold and silver 4) all

3. Which one of the following is non metal? 1) copper 2) Sodium 3) potassium 4) Carbon

4. which metal not shown property of malleability ? 1) aluminium 2) Silver 3) copper 4) iron

5. Which property of metal by helpful for creating wires? 1) Ductility 2) all 3) Conductivity 4) malleability

6. where Sodium metal is stored in laboratory ? 1) in water 2) in paper 3) in bottle 4) in Kerosene

7. what is density of lithium ? 1) 0.53 g/cc. 2) 0.52 g/cc. 3) 0.51g/cc. 4) 0.54 g/cc.

8. which is the hardest non metal ? 1) Diamond 2) Sulphur 3) graphite 4) coal

9. which is incorrect statement about metals? 1) Metals are good conductors of electricity 2) Gold, Silver, Aluminium are highly malleable metals. 3) Generally metals are hard. 4) Metals are not sonorous

10. There is a statue of Liberty in the sea near New york city in America. which metal is used to made original surface of this statues ? 1) copper 2) gold 3) silver 4) iron