Question

State four different properties of a compound & a mixture. With reference to the stated properties give reasons why air is considered a mixture and not a compound. ​

Answer 1

Properties of compounds:

1. Compound has a fixed composition.

2. Compound has definite properties.

3. Compounds cannot be separated by physical methods.

Properties of mixture:

1. Mixture has a variable composition.

2. Mixture has no definite properties.

3. Mixtures can be separated by physical methods. Air is a mixture because it has a variable, composition and has no definite properties.