Question

Water contains two components but still it is a pure substance give two reasons

Answer 1

Water is a compound and not a mixture because

1. Its properties are completely different from that of oxygen and hydrogen, its constituent elements.
2. components of water cannot be seperated by physical methods.
3. It has a fixed ratio. That is hydrogen and oxygen are always present in the same ratio by mass.
4. Freezing and Boiling Point of water is fixed