Which of the following matters will form a homogeneous mixture?

Correct option is C

The correct answer is (c) Carbon dioxide and water

Explanation:

• A homogeneous mixture is one in which the composition is uniform throughout the solution and the components are not visually distinguishable.
• When carbon dioxide (CO₂) is dissolved in water (H₂O) under pressure, it forms carbonated water, which is a homogeneous mixture. The gas is evenly distributed throughout the liquid, forming a single-phase solution without visible separation.

Information Booster:

• Carbonated beverages like soda are common examples of a homogeneous mixture of carbon dioxide and water.
• The gas is dissolved under pressure, and when the container is opened, the pressure is released, and carbon dioxide escapes, forming bubbles.
• These types of mixtures are also known as solutions, where the solute (CO₂) is uniformly distributed in the solvent (H₂O).

Additional Knowledge:

• Soil and water:
  This forms a heterogeneous mixture as the soil particles do not dissolve in water and settle over time. The components can be easily distinguished.
• Sand and table salt:
  This is a heterogeneous solid-solid mixture. Although both are solids, they can be easily separated by physical means like filtration or dissolving salt in water.
• Benzene and water:
  This forms a heterogeneous mixture because benzene is immiscible in water. They separate into distinct layers due to differences in polarity.