General Principles and Processes of Isolation of Elements

General Principles and Processes of Isolation of Elements

These MCQs are intended for checking your Chemistry subject, Chapter General Principles and Processes of Isolation of Elements knowledge.

Which of the following ores cannot be concentrated by magnetic separation?

Sulphide ore of zinc/copper is concentrated by

For which of the following ores froth floatation method is used for concentration?

Concentration of sulphide ore is done by

Common impurities present in bauxite are

Which of the following ores is concentrated by chemical leaching method?

Which of the following sulphides when heated strongly in air gives the corresponding metal without undergoing separate reduction of oxide?

Removal of the unwanted materials like sand, clays, etc. from the ore is known as ………., …….. or ……….

The powdered ore is agitated with water or washed with running stream of water. The heavy ore particles and lighter impurities are separated. This method of concentration is known as

Heating pyrites to remove sulphur is called

How do we separate two sulphide ores by froth floatation method?

Ore of aluminium is

Which of the following metals cannot be obtained by reduction of its metal oxide by aluminium ?

Which of the following metals is extracted using a silica lined convertor?

An ore of tin containing FeCrO4 is concentrated by

Which of the following metals is not extracted by leaching?

Malachite is an ore of

The significance of leaching in the extraction of aluminium is

Formula of copper pyrite is

The oil used as frothing agent in froth floatation process is

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