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Chemistry

Chemistry
Which is the purest form of iron?

Pig iron
Cast iron
Steel
Wrought iron

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Chemistry
Vulcanized rubber contains sulphur

7-9%
10-15%
0.02
3-5%

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Chemistry
Cooking gas is a mixture of

Carbon monoxide and carbon dioxide
Butane and propane
Carbon dioxide and oxygen
Methane and ethylene

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Chemistry
The iron ore magnetite consists of

3Fe2O3 .. 3H2O
Fe3OH4
Fe2O3
FeCO3

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Chemistry
Which method will be employed to test the hardness of water?

Distillation
Boiling
Formation of lather with soap
None of these

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Chemistry
Which of the following is used to denature ethanol ?

Phenol
Methane
Methyl alcohol
Propyl alcohol

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MORE MCQ ON Chemistry

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