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Chemistry

Chemistry
White phosphorus is always kept under

Kerosene
Water
Benzene
Ether

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Chemistry
The most abundant element in the human body is

Nitrogen
Iron
Carbon
Oxygen

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Chemistry
Vinegar made by fermentation from cane sugar contains

Citric acid
Palmitic acid
Acetic acid
Lactic acid

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Chemistry
The coloured discharge tubes for advertisement mainly contain

Helium
Neon
Argon
Xenon

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Chemistry
Which of the following gases will effuse out of football bladder most quickly ?

He
N 2
H2
O2

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Chemistry
Electric bulbs are filled with :

Carbon dioxide
Argon
Oxygen
Nitrogen

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