Question

d. What is rusting? Discuss any two measures to prevent rusting
e what is meant by the physical properties of a substance?​

Answer 1

Rusting is the process When An Iron come in Contact with Oxygen And Water a red Brown Coloured Patches Form Are called Rust And This Process is Called Rusting....

Two measures to prevent Rusting Are....

• By Zinc Coating
• By painting

Properties Such as Shape, size, colour and State Of a substance are Called it as Physical Properties.......

Hope It will Help U......❣️❣️❣️❣️❣️❣️❣️❣️

Answer 2

Answer:

▪︎Rusting is a phenomenon in which iron ( ferrum) reacts with moisture ( water and air ) to produce oxide of iron called rust or ferrous oxides.

(Fe2+) + O2 → (4 Fe3+) + 2 O.

▪︎Measures to prevent rusting:

1. Keep It Clean and Dry. Water is enemy number one when it comes to rust, because it's the oxygen in water molecules that combines with iron to form iron oxide

2. Galvanization of iron

● Properties which count the appearance of substance such as color, size , shape, dry/wet , crumbled , amount are physicall properties.