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Chemistry

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

Hydrogen
Methane
Butane
Ethanol

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Chemistry
The chemical name of 'laughing gas' is

Nitric oxide
Nitrous oxide
Nitrogen dioxide
Nitrogen pentoxide

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Chemistry
An electric iron has a heating element made of :

Nichrome
Zinc
Copper
Tungsten

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Chemistry
Which one of the following organic compound is used to remove stains of iron compounds?

Phthalic acid
Oxalic acid
Cinnamic acid
Benzoic acid

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Chemistry
Catalyst is a substance which

Decreases the rate of reaction
None of these
Has no action on the rate of the reaction
Increases the rate of the reaction

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Chemistry
What is Zeolite?

Dehydrated Calcium Sulphate
Hydrated Aluminosilicate
Dehydrated Aluminosilicate
Hydrated Calcium Sulphate

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