Assertion: Transparent soaps are made by dissolving soaps in ethanol.
Reasoning: Ethanol makes things invisible.
Answer & explanation
Correct answer: option 3
The correct answer is 3. Assertion (A) is true but Reasoning (R) is not correct.
Assertion (A) is true. Transparent soaps are made by dissolving soaps in ethanol. Ethanol is a clear liquid, so when it is dissolved in soap, the soap becomes clear.
Reasoning (R) is not correct. Ethanol does not make things invisible. It simply makes them clear. The reason why transparent soaps are clear is because the ethanol dissolves the soap molecules, which are opaque. When the soap molecules are dissolved, they are no longer opaque, so the soap becomes clear.