Metals and Non-metals
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The most abundant metal in earth’s crust is:
  • copper
  • aluminium
  • oxygen
  •  iron.

B.

aluminium
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    What are metals?
    Answer
    Give important physical characteristics of metals.
    Answer
    What do you understand by malleability and ductility of a metal? Give examples of two metals which are both ductile and malleable.
    Answer
    Gold is soluble in:
    • hydrochloric acid
    • sodium hydroxide
    • nitric acid 
    • aqua regia.
    Answer
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