Question

Which of the following is a homogeneous mixture.

• A. Iron fillings and sulphur
• B. Muddy water
• C. Air
• D. Petrol and water

Answer 1

The correct option is C

Air

The explanation for the correct option:

Option C: Homogeneous mixture:

• A mixture is said to be homogeneous if its constituents are uniformly mixed and it has the same properties throughout.
• The constituents of a homogeneous mixture cannot be easily separated.
• For example, the air is a homogeneous mixture of different gases.

The explanation for incorrect options:

• Iron filings and sulphur, muddy water, petrol and water are heterogeneous mixtures.
• A mixture is said to be heterogeneous if its constituents are not uniformly mixed and it does not have the same properties.
• The constituents of a heterogeneous mixture can be separated.

Therefore, option c is correct.