Question

1. How the rust in iron is formed.?
2. What will be the character of rust (acidic or basic)?
3. How can we test it..?

4. A green coating can be seen on copper vessels.
A. What is it?
B. how it is formed.?


Please tell this answer truthfully and quickly. Who answers the correct answer I will mark as brainliest

Answer 1

Answer:

1. Rust is an iron oxide, a usually reddish brown oxide formed by the reaction of iron and oxygen in the presence of water or air moisture. ... Rusting is the common term for corrosion of iron and its alloys, such as steel. Many other metals undergo similar corrosion, but the resulting oxides are not commonly called rust.
2. Rust is a metal oxide created from iron; therefore it has the central atom that is more electropositive. As a result, it is more basic than the non metal oxides such as N20. Answer: Rust is basic in nature

4 Copper metal when exposed to air turns green in colour due to corrosion. When copper vessel is exposed to air in rainy season, the metal reacts with gases and moisture and atmospheric gases to form a mixture of copper carbonate and copper hydroxide. This gives a green colour to the surface of copper metal.

Answer 2

1) when iron react with O² present in air and moisture

2) acidic character show by iron rust

3)by using litmus paper or universal indicator

4) copper react with O to form green substance

5) copper oxide

6) by reacting with present air in atmosphere