Question

which of the following gas cannot be collected over Water

Answer 1

c)SO2 is the correct answer

Answer 2

Hey dear,

● Answer -
Sulphur dioxide (SO2)

● Explaination -
- Insoluble gases don't dissolve in water and thus can be collected over it. E.g. Nitrogen, Oxygen, Carnon dioxide, etc.
- Soluble gases dissolve easily in water and thus can't be seperated from it.
- Sulphur dioxide reacts with water to give sulphurous acid.
SO2 + H2O ---> H2SO3
- Therefore, it can't be collected over water.

Hope this helps...