Cake is an example of:

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This question was previously asked in

DSSSB PGT Chemistry (Female) Official Paper (Held On: 06 Jul, 2018 Shift 1)

Answer 1

CONCEPT:

Types of Mixtures

Mixtures can be classified based on the state of the components involved (solid, liquid, or gas).
Examples of such mixtures include:
- Solid in liquid: A solid dissolved in a liquid (e.g., sugar in water).
- Gas in solid: A gas trapped in a solid (e.g., foam-like materials such as sponge or cake).
- Liquid in solid: A liquid dispersed in a solid (e.g., gel).
- Solid in solid: A mixture of solids (e.g., alloys like bronze).

EXPLANATION:

Cake is a foam-like material where air (a gas) is trapped in the solid structure of baked ingredients (such as flour, sugar, and eggs).
During the baking process:
- Air or gases (e.g., carbon dioxide from baking powder) get incorporated into the batter.
- When baked, these gases expand, forming bubbles that are trapped as the batter solidifies.
As a result, cake is a classic example of a "gas in solid" mixture.

Therefore, the correct answer is Gas in solid.

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