Answer & Solution
Answer: Option B
Solution:
The correct answer is
Option B: Gas in liquid.
Here's why:
* A
colloidal system is a mixture where one substance is dispersed evenly throughout another.
*
Soda water is essentially carbon dioxide gas (CO₂) dissolved in water (a liquid).
* Therefore, soda water represents a
gas (CO₂) dispersed in a liquid (water).
Let's look at why the other options are incorrect:
*
Option A: Liquid in gas This would be something like fog or mist, where tiny liquid droplets are suspended in air (a gas).
*
Option C: Solid in gas This would be something like smoke, where tiny solid particles are suspended in air.
*
Option D: Liquid in liquid This would be an emulsion, like milk, where tiny droplets of one liquid are dispersed in another liquid.
So, to remember:
Soda water = Gas (Carbon Dioxide) in Liquid (Water).
