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CHEMISTRY

Chemistry
Which of the following metals occurs in free state ?

Iron
Lead
Copper
Zinc

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Chemistry
The “King of Metals” is :

Iron
Gold
Aluminium
Silver

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Chemistry
Which of the following metals is used in Space Crafts to withstand high temperatures ?

Ti
Pb
Ni
Fe

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Chemistry
Phosphorus is kept in water because

Its ignition temperature is very low
Its critical temperature is high
Its ignition temperature is very high
Its critical temperature is low

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Chemistry
The element which is used for vulcanizing rubber

Silicon
Sulphur
Phosphorus
Bromine

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