(a) Name two metals which resist corrosion due to the formation of a thin, hard and impervious layer of oxide on their surface.
(b) Name five methods of preventing rusting of iron.
(c) What are the constituents of stainless steel? What are the special properties of stainless steel?
Answers
Answer:
(a) Aluminium and Zinc are the two metals which resist corrosion due to formation of oxide later on their surface
(b) 1. Galvanisation
2. Painting
3. Electroplating
4. Formation of alloys
5. Oiling and Greasing
(c) CONSTITUENTS OF STAINLESS STEEL
Stainless steel is an alloy made from steel mixed with elements such as chromium, molybdenum, nickel, silicon, Aluminium and carbon.Other alloying metals like copper, titanium and vanadium are also added in order to improve the properties and structure of stainless steel.
SPECIAL PROPERTIES
1. Resists corrosion
2. Very strong
3. It is ductile
4. It has magnetic property
5. Not a good conductor of heat and electricity
PLEASE MARK AS BRAINIEST ANSWER
Explanation:
a) Aluminum and zinc are resistant to corrosion due to the formation of a thin, hard and impermeable oxide layer on their surfaces. Because they are highly reactive metals with a high affinity for oxygen, the metal is highly resistant to most environments and a variety of chemicals.
b) These are methods to prevent iron rust galvanization, painting, electroplating, blurring, organic coating .
C) Stainless steel components are chromium, nickel, and molybdenum. Chromium is combined to produce it resistant to rust. The addition of nickel improves the corrosion resistance during aggressive use. After adding molybdenum, the scars become locally resistant to corrosion.
You can get all the answers of Chapter 3 in the link below:
https://brainly.in/question/14963102
Few questions related to this chapter:
(a) How does the painting of an iron object prevent its rusting?
(b) How do.....
brainly.in/question/14916022
(a) Classify the following into renewable and non-renewable sources of ener.....
brainly.in/question/14915667