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Chemistry

Chemistry
Which one of the following elements exhibits the greatest tendency to lose electrons ?

Fluorine
Lithium
Zinc
Oxygen

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Chemistry
The gas which turns into liquid at the lowest temperature among the following is

Nitrogen
Oxygen
Hydrogen
Helium

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Chemistry
Stainless steel is an alloy of

Carbon and iron
Chromium, carbon and iron
Chromium and carbon
Chromium and iron

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Chemistry
Tear gas is :

Nitrous oxide
Bleaching powder
Chloroprene
Carbonyl chloride

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Chemistry
The percentage of Nitrogen in Air is

85.02
78.03
0.03
0.94

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Chemistry
Sulphur dioxide level in the atmosphere can be reduced by using

More efficient car engines
Low - sulphur fuels
Static electricity to attract it in factory chimneys
Catalytic converters in industry

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MORE MCQ ON Chemistry

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