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Chemistry

Chemistry
The metal extracted from Bauxite is :

Silver
Aluminum
Manganese
Copper

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Chemistry
The most abundant element is

Nitrogen
Silicon
Oxygen
Calcium

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Chemistry
Which one of the following is commonly used for pulp bleaching in the paper industry?

Glucose isomerase
Mild sulphuric acid
Iodine and water
Hydrogen peroxide

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Chemistry
The heaviest naturally occurring element is:

Thorium
Uranium
Polonium
Mercury

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Chemistry
Aquaregia is a mixture of the following in the ratio 1 : 3 by volume

Conc. HCl and conc. HNO3
Conc. HNO3 and conc. H2SO4
Conc. HNO3 and conc. HCl
Dil. HCl and dil. HNO3

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Chemistry
Particulates (< 1 µm size) remaining suspended in air indefinitely and transported by wind currents are called

Fumes
Mists
Aerosols
Smoke

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MORE MCQ ON Chemistry

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