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Chemistry

Chemistry
Which of the following acts as promoter for iron in Haber's process

W
Mg
Mo
Mn

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Chemistry
Wood spirit is

Ethyl alcohol
Butyl alcohol
Propyl alcohol
Methyl alcohol

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Chemistry
Which of the following is the best fuel in terms of energy released per gram of fuel?

Hydrogen
Methane
Ethanol
Butane

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Chemistry
Which of the following metals is not a pollutant ?

Aluminium
Lead
Mercury
Arsenic

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Chemistry
The mass of P4O10 that will be obtained from the reaction of 1.33 gram of P4 and 5.07 of oxygen is

3.05 gram
2.05 gram
4.05 gram
5.05 gram

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Chemistry
When Hydrogen starts burning in air, it produces ?

Ammonia
Methane
Water
Carbonic Acid

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