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STD 8 Carbon game by SREEJI SREENIVASAN
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Carbon monoxide is a reducing agent. True or False
True
Colour change observed when litmus paper is brought near the gas jar containing carbon dioxide gas.
Blue litmus turns red.
Solid form of carbon dioxide is known as..........................
Dry ice
Name the substance taken in the round bottom flask in the picture shown.
Marble chips
Name the substance add through the thistle funnel in the picture shown.
Dilute Hydrochloric acid
Give one use of Coke.
Fuel, Metallurgical operations, making electrodes.
Coke is produced when coal is strongly heated in absence of air. 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
Process by which sugar charcoal is obtained.
Destructive distillation of sugar or by dehydrating sugar with concentrated Sulphuric acid
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.
State one use of black diamond.
Making laser beams, needles in record player, cutting glass as well as diamonds.
Diamond is neither conductor of heat or electricity. True or False
True
List allotropic form of carbon
Amorphous and Crystalline form.
Name the unique property of carbon to join other carbon atoms.
Catenation
Carbon dioxide gas is collected by downward displacement of water. True or False
False
Solution used to test presence of Carbon dioxide.
Lime water
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