Question

Smelting is termed to the process in which
(A) The ore is heated in the absence of air.
(B) Ore is cold.
(C) The ore is heated in the presence of air.
(D) Ore is melted.

Answer 1

Hint: Melting is the process by which metal is obtained, as an element or as a simple compound, in its stone by heating it over the molten surface, usually in the presence of oxidising agents, such as air, or reducing agents, such as coke.

Complete Step by Step Solution:
Smelting is a form of extractive metallurgy to produce metal in its metal. Melting uses heat and a chemical reduction agent to decompose the metal, expel other elements such as gas or slag and leave the metal behind. The reducing agent is usually a source of carbon such as coke, coal, and coal.

In order to achieve the high temperatures required for melting, compressed furnaces with compressed air were made; with steel, even higher temperatures were required. So the meltdown represented a major technological breakthrough.

Therefore, the correct answer is C) The ore is heated in the presence of air and D) ore is melted.

Note: In modern metal treatment, various initial steps are usually performed before melting to stabilise the metal as much as possible. In the process of smelting iron mixed with oxygen. For example, iron oxide is heated to high temperatures, and oxide is caused by a combination of carbon in gasoline, emitting it as carbon monoxide or carbon dioxide.