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Chemistry

Chemistry
When Hydrogen starts burning in air, it produces ?

Ammonia
Water
Carbonic Acid
Methane

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Chemistry
Which of the following is used in making smoke bombs?

Hydrogen
Phosphorus
Carbon
Sulphur

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Chemistry
Gold dissolves in

Acetic acid
Hydrochloric acid
Nitric acid
Aqua-regia

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Chemistry
Bhopal gas tragedy is associated with leakage of

Sulphur dioxide
Carbon dioxide
Nitrogen dioxide
Methyl isocyanate

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Chemistry
Which of the following laser types is used in a laser printer?

Gas laser
Dye laser
Semiconductor laser
Excimer laser

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Chemistry
Cyanide poisoning causes death in seconds because

It causes cardiac arrest
It causes Lysis of red blood cells
It denatures enzymes of the heart/muscle
It breaks the electron transport chain

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