All of the following are liquid crystals except ?a) Soap solution b) DNA c) Cholesteryl format d) Engine oil
مندرجہ ذیل تمام مائع کرسٹل ہیں سوائے؟
Answer: Soap solution
Explanation
A liquid crystal is a state of matter that exhibits properties of both liquids and crystals.
It requires the molecules to have a specific structure, often long and rigid, to form ordered phases.
While soap can form structures similar to liquid crystals when mixed with water (forming micelles), pure soap is not a liquid crystal.
The other options listed, DNA, cholesteryl format, and engine oil, can all exhibit liquid crystal properties under certain conditions.
