Question

write any five properties of following :
1)Iron.
2)Silver.
3)Sodium.
4)Carbon.
5)Oxygen.

Answer 1

Iron:
- A hard metal
- Used in buildings, constructions. heavy stuff.
- It rusts due to presence of oxygen 
- It is a heavy metal
- It is grey in color.

Silver:
- It is a lustrous metal
- It is hard, but not very hard
- It is used in jewelry
-It is used behind mirrors as reflecting surface
-It is used in astronauts helmets

Sodium:
- Soft metal
- Used in salt ( NaCl)
- It is useful for lot of reactions
- Used as Catalyst

Carbon
- has many allotropes
- exists as solid, liquid and a gas too
- Used in soft drinks as carbonation
- Used in fire extinguishers
- It is a unique element

Oxygen:
- Most crucial gas to living beings
- Used to keep the fire burning
- Used in flamethrowers
- Used as deterrent of carbon di oxide
- It exists mostly as a gas.

Hope it helps
^_^

Answer 2

1 . iron
• iron are hard
metal
2.silver
it is lustrous metal
3.carbon
it is non metal
it is divide by two types
cristilline
non cristilline .
4.sodium
it is soft
5.oxygen
it very important gas of living organism