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Chemistry

Chemistry
The acid present in red ants is

Caproic acid
Acetic acid
Formic acid
Butyric acid

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Chemistry
What is the mass percentage of oxygen in carbon dioxide (CO2)

0.727
0.509
0.658
0.305

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Chemistry
Food cans are coated with tin and not with zinc because

Zinc has a higher melting point than tin
Zinc is costlier than tin
Zinc is more reactive than tin
Zinc is less reactive than tin

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Chemistry
Which one of the following is a micro-element ?

Hydrogen
Chlorine
Nitrogen
Oxygen

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Chemistry
Which of the following chemical materials is responsible for the depletion of ozone layer in the atmosphere ?

Carbon dioxide
Chlorofluorocarbon
Nitrous oxide
Sulphur dioxide

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Chemistry
When water itself combines chemically with some element or mineral it is called

Carbonation
Desilication
Hydration
Oxidation

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MORE MCQ ON Chemistry

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