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Metals

Chemistry · Kerala SSLC (Class 10) · English Medium · 40 questions and answers

Sample questions

Q: What is a mineral?

A: Naturally occurring metals or compounds are called minerals. They include metallic and non-metallic compounds; e.g. clay, bauxite and cryolite are minerals of aluminium.

Q: What is an ore?

A: A mineral from which a metal can be extracted profitably and conveniently.

Q: What is metallurgy?

A: The process of extracting a metal from its ore and refining it for use.

Q: What is gangue?

A: The unwanted earthy or rocky impurities present in an ore, such as sand and clay.

Q: What is concentration (dressing) of an ore?

A: The removal of gangue and other impurities from a powdered ore to increase the percentage of metal compound in it.

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