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The Iron and Steel Factories in India

is a process ...

Question

________ is a process of applying extreme heat to an ore to extract a base metal.

A

Smelting

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B

Melting

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C

Boiling

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D

Galvanizing

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Solution

The correct option is A Smelting
Smelting is a process of applying extreme heat to an ore to extract a base metal. There were hundreds of smelting furnaces all over Mysore which produced Wootz steel.

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Q. ________ is a process of applying extreme heat to an ore to extract a base metal.

Q. The process of applying extreme heat to an ore to extract a base metal is called

Q. An ore is a mineral from which a metal can be extracted:

Reduction to free metal: some of the methods commonly used to get free metal from the concentrates ore are below.

Smelting: The process of extracting a metal in the state of fusions is called smelting. In this process, the ore is mixed with carbon and heated in a suitable furnace

Electrolytic reduction process: This process is used in the extraction of the alkali and alkaline earth metals, zinc and aluminium.

Self-reduction process: The sulphide ores of less electropositive metals like Hg, Pb, Cu etc., are heated in the air so as to convert part of the ore into oxide or sulphate which then reacts with the remaining sulphide ore to give the metal.

The metal extracted by electrolysis of its fused salt is :

Name the following:

(a) A metal which is liquid at room temperature.

(b) The process of heating an ore to a high temperature in the presence of air.

(c) The compound formed by the reaction between calcium oxide and silica.

(d) A compound which is added to lower the fusion temperature of the electrolytic bath in the extraction of aluminium.

(e) Name an allotrope of a non-metal that allows electricity to pass through it.

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