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

Compare soda water with fog and with smoke to see which combination it matches.

1. Liquid in gas: that describes fog's water droplets in air, not the bubbles rising through a glass of soda water.
2. Gas in liquid: the bubbles you see rising and popping in a glass of soda water are carbon dioxide gas trapped in the liquid, matching this option exactly.
3. Solid in gas: that describes smoke's solid soot particles in air, unrelated to soda water's liquid base.
4. Gas in gas: that would need soda water to be entirely gaseous, which it is not, since it is poured and drunk as a liquid.

Since soda water's fizz is gas trapped in a liquid, the correct answer is gas in liquid.

Answer 2

Identify the medium and the dispersed phase in soda water separately.

1. Liquid in gas: here the medium would be a gas, but soda water's medium is clearly the liquid you pour into a glass.
2. Gas in liquid: soda water's medium is liquid water, and its dispersed phase is dissolved carbon dioxide gas, matching this option on both counts.
3. Solid in gas: here the dispersed phase would need to be solid, but soda water's fizz comes from gas bubbles, not solid particles.
4. Gas in gas: here the medium would need to be a gas too, which does not match soda water's liquid base.

Since the medium is liquid and the dispersed component is gas, the correct answer is gas in liquid.