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Chemistry

Chemistry
Which of the following fibres catches fire least ?

Terricot
Nylon
Rayon
Cotton

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Chemistry
The source of energy that causes the least global warming is

Coal
Geothermal energy
Petroleum
Natural Gas

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Chemistry
What is the element that is in the highest percentage in the composition of the earth ?

Oxygen
Iron
Magnesium
Silicon

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Chemistry
Acid rain is caused due to emission of which of the following in to the atmosphere ?

Carbon monoxide and nitrogen
Carbon dioxide and carbon monoxide
Oxides of nitrogen and sulphur
Ozone and carbon dioxide

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Chemistry
The unit of ionic product of water (Kw) is :

Mol2 let-2
Mol2 let-1
Mol-1 let-2
Mol-1 let-1

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Chemistry
An important green-house gas other than methane being produced from the agricultural fields is

Nitrous oxide
Ammonia
Arsine
Sulphur dioxide

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MORE MCQ ON Chemistry

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