Study

METALS AND NON METALS

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  • product of reaction of non metal with water is
    no reaction
  • composition of steel
    iron and carbon
  • ore of iron is called as
    haemetite
  • metal with low mp and bp is
    caesium
  • most reactive elememt
    K
  • base with convert blue litmus paper to
    no change
  • in 16 carat gold, parts of cu/ag is
    8
  • TOTAL NUMBER OF ELEMENTS ON EARTH
    118
  • composition of bronze
    copper and tin
  • LEAST REACTIVE ELEMENT
    Pt
  • nature of metallic oxides are
    basic
  • name the hardest substance
    diamond
  • MOST ABUNDANT ELEMENT ON EARTH
    Al
  • non metal which is lustrous
    iodine
  • composition of brass
    copper and zinc
  • non metallic oxides are------------------------in nature
    acidic
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