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Chemistry

Chemistry
Which is the purest form of iron?

Cast iron
Wrought iron
Pig iron
Steel

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Chemistry
The metal used for making aircrafts and rockets is

Copper
Lead
Nickel
Aluminium

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Chemistry
The atomic number of carbon is 6 and its atomic mass is 12. How many are there protons in the nucleus of carbon ?

Zero
6
12
18

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Chemistry
Trinitrotoluene is

Used as an explosive
Used to melt metals
Used as an abrasive
Used to fuse two metals

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Chemistry
The gas that usually causes explosions in coal mines is

Hydrogen
Carbon monoxide
Methane
Air

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Chemistry
Milk tastes sour when kept in the open for sometime due to the formation of

Lactic acid
Acetic acid
Citric acid
Carbonic acid

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MORE MCQ ON Chemistry

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