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Chemistry

Chemistry
For extinguishing fire, we use

Carbon Monoxide
Hydrogen
Carbon Dioxide
Marsh gas

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Chemistry
Which one of the following is a major green house gas?

Carbon monoxide
Chloro fluorocarbon
Carbon dioxide
Freon

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Chemistry
What is a mixture of potassium nitrate, powdered charcoal and sulphur called?

Gun powder
Glass
Paint
Cement

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Chemistry
When lime juice is dropped on baking soda, brisk effervescence takes place because the gas evolved is

All of them
Carbon dioxide
Hydrogen
Oxygen

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Chemistry
If lime water is kept in the air, it turns milky due to presence of :

Nitrogen
Carbondioxide
Sulphurdioxide
Oxygen

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Chemistry
Denatured spirit is ethanol mixed with

Pyridine
Petrol
Water
Kerosene

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MORE MCQ ON Chemistry

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