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STD 8 Carbon game by SREEJI SREENIVASAN

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  • Give one use of Coke.
    Fuel, Metallurgical operations, making electrodes.
  • Solid form of carbon dioxide is known as..........................
    Dry ice
  • Carbon monoxide is a reducing agent. True or False
    True
  • Name the substance add through the thistle funnel in the picture shown.
    Dilute Hydrochloric acid
  • Coke is produced when coal is strongly heated in absence of air. True or False
    True
  • Carbon dioxide gas is collected by downward displacement of water. True or False
    False
  • Graphite is used as a lubricant. True or False.
    True
  • Graphite is used to make refractory crucibles. Why?
    Because it is a good conductor of heat and has high melting point.
  • Colour change observed when litmus paper is brought near the gas jar containing carbon dioxide gas.
    Blue litmus turns red.
  • Solution used to test presence of Carbon dioxide.
    Lime water
  • Process by which sugar charcoal is obtained.
    Destructive distillation of sugar or by dehydrating sugar with concentrated Sulphuric acid
  • Name the substance taken in the round bottom flask in the picture shown.
    Marble chips
  • Diamond is neither conductor of heat or electricity. True or False
    True
  • Lamp black is used in manufacturing of tyres.
    To increase durability.
  • Soot is also called as.....
    lamp black or Carbon black
  • State one use of black diamond.
    Making laser beams, needles in record player, cutting glass as well as diamonds.
  • List allotropic form of carbon
    Amorphous and Crystalline form.
  • Name the unique property of carbon to join other carbon atoms.
    Catenation
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