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LET'S HAVE FUN WITH METALS AND NON-METALS

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  • Composition of Gun metal
    Copper, Tin and Zinc
  • The liquid metal at room temperature (a) Mercury(b) Bromine(c) Sodium(d) Gold.
    MERCURY
  • Name two metals which do not react with oxygen even at high temperature.
    GOLD AND SILVER
  • Define Malleability.
    The property of metals by which they can be beaten into thin sheets is known as malleability.
  • What happens when Iron (Fe) reacts with Oxygen and Moisture?
    Formation of Rust
  • Define Ductility.
    It is one of the properties of metals by virtue of which they can be drawn into wires.
  • Generally non-metals are non-lustrous. Name one non-metal which is lustrous.
    IODINE
  • The metal which can be cut with a knife (a) Sodium and potassium(b) Barium and calcium (c) Sodium and mercury(d) Potassium and calcium.
    SODIUM AND POTASSIUM
  • Most popular use of German Silver
    Tableware
  • Composition of Duralumin
    Al, Cu, Mg, Mn
  • When non-metals react with water then (a) Hydrogen gas is formed (b) Carbon dioxide gas is formed (c) Non-metals do not react with water (d) None of these.
    Non-metals do not react with water
  • The most reactive metal is: (a) Iron(b) Gold(c) Zinc(d) Potassium.
    POTASSIUM
  • A non metal which is used in batteries.
    Graphite.
  • Metal oxides are of nature (a) Acidic(b) Basic(c) Neutral(d) All of these.
    BASIC IN NATURE
  • Define the term - ALLOY.
    An alloy is a solid mixture of two or more metals or a metal and a non-metal.
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