Question

Soda water is a solution of:

• A. Liquid in gas
• B. Gas in liquid
• C. Solid in gas
• D. Gas in gas

Hint:

In soda water, the gas (carbon dioxide) is dissolved in liquid water, which is why it is classified as gas in liquid.

Answer 1

The Correct Option is B

Soda water is an example of a solution where carbon dioxide gas is dissolved in water, which is a liquid. This kind of solution is classified as gas in liquid. In chemistry, solutions are homogeneous mixtures composed of two or more substances. The substance that is present in a lesser amount and is dissolved is called the solute, and the substance in which the solute is dissolved is called the solvent. For soda water, the solute is the carbon dioxide gas, and the solvent is water. Therefore, the correct answer is Gas in liquid.

Answer 2

Soda water is being classified by its physical state combination. Check each option against what makes soda water fizzy.

1. Liquid in gas: this would need liquid droplets dispersed in a gas, which describes something like fog, not the fizzy water in a bottle.
2. Gas in liquid: soda water fizzes because carbon dioxide gas is dissolved and trapped within the liquid water. That is a gas dispersed in a liquid, matching soda water directly.
3. Solid in gas: this would describe solid particles floating in air, unrelated to the dissolved gas bubbles in soda water.
4. Gas in gas: this would need both components to be gases, but soda water clearly has a liquid base.

The fizz in soda water comes from carbon dioxide gas dissolved in liquid water, so it fits gas dispersed in liquid.

So the correct answer is gas in liquid.