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Chemistry- test quiz 14

Chemistry- test quiz 14

the scientific study of the structure of substances and what happens to them in different conditions or when mixed with each other

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Quiz Questions And Answers

A spherical ball made of steel when dropped in a mercury container will:

be on the surface of mercury.
be partly immersed mercury.
dissolve In mercury.

Hydrogen peroxide is an effective sterilizing agent. Which one of the following product results when it readily loses active oxygen?

Water
Hydrogen
Nasant Hydrogen

Which gas is used as fire extinguisher?

Carbon dioxideCarbon dioxide
Carbon monoxide
Carbon suboxide

Which one of the following is extensively used for sterilizing water?

Bleaching powder
Alum
Borax powder

Which mixture of gases is mainly stored as a liquid under pressure in LPG cylinder?

Ethane and Hexane
Propane and Butane
Hexane and Octane

The major constituent of air is:

nitrogen
carbon dioxide
oxygen

Rusting of iron takes place due to:

oxidation
carbonation
exfoliation

The highest grade and best equality coal is:

Peat
Bituminous
Anthracite

German silver used for making utensils is an alloy of:

copper, zinc, nickel
copper, zinc, aluminium
copper, nickel, aluminium

Which of the following organisms is most likely to produce greenhouse gases such as nitrous oxide and methane?

Earthworm
Bacteria
Green plant
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