Question

What is an alloy? How is an alloy made? List two purposes of making alloys. Mention the constituents and two properties of each of the following alloys: (i) Stainless steel (ii) Brass

Answer 1

 An alloy is a homogenous mixture of two or more metals. It sometimes contains a non-metal component also. It is made by heating the components in a definite proportion and then uniformly mixing them in the molten state and then cooling.

Two purposes of making alloys are:
(i) To make a substance resistant to corrosion
(ii) To make a substance strong and hard Constituents of Stainless steel: Iron, nickel, and chromium

Two properties of stainless steel are:
(i) It is resistant to corrosion.
(ii) It is more durable.

Constituents of Brass: Copper and Zinc
Two properties of brass are:
(i) It is resistant to corrosion.
(ii) It is more malleable.

Answer 2

Answer:

alloy are mixture of two or more metals or metal and nonmetals are called alloys

to make a substance resistance to corrosion

to make a substance strong and hard continuously of stillness steel