Question

properties of gases in 5 points
Hydrogen; nitrogen; carbon dioxide; oxygen

Answer 1

HYDROGEN:

1. It is has a formula of H2 and atomic no. 1
2. It is colorless, odorless, tasteless and non-toxic.
3. Highly combustible.
4. It is non-metal.
5. Melting point- (-259.2)°C and boiling point - (-252.76)°C

NITROGEN:

1. It has a formula of N and atomic no. 7
2. It is an inert gas
3. It is colorless, odorless and tasteless.
4. It is a non-metal
5. Melting point- (2)°C and boiling point- (113.5)°C

CARBON DIOXIDE:

1. It has a formula of CO2
2. It is colorless and odorless but at specific conditions it gives an acidic odor,
3. It is a linear covalent molecule
4. It is used to carbonate soft drinks.
5. Melting point- (-55)°C and boiling point- (-78)°C

OXYGEN:

1. It has a formula of O2 and atomic no. 8
2. It is colorless, odorless and tasteless
3. It is very essential as we inhale it
4. It is a highly reactive non-metal
5. Melting point- (-218.8)°C and boiling point - (-183.3)°C.