Choose the best answer: A colloidal dispersion of one liquid

in another is called (a) a gel, (b) an emulsion, (c) a foam,

(d) an aerosol

Video transcript

All right. Hello everyone. So this question is asking us to identify the type of colloidal dispersion. That is one solid in another option A is foam. Option B says emulsion option C says solid emulsion and option D says solid soul. So for this particular question, recall, first and foremost, what a colloid happens to be a colloid is a mixture in which we have particles of one substance suspended throughout another substance. Now, these particles are microscopically dispersed and they can be insoluble or soluble. And so here there are different names for different types of colloids based on the phases that are mixing together. However, the exception to this rule is that there is no such thing as a gas and gas colloid. There is no such thing as a colloid between two gasses because all of these mixtures are solutions. And so for the sake of discussion, I'm going to list our possible combinations as the dispersing substance first and the dispersed substance. Second. So here, first of all, we can talk about a gas dispersed in a liquid which would be an aerosol. We can talk about gas solid, which would be aerosol, smoke liquid gas would be a foam liquid to liquid is an emulsion. For example, milk, liquid solid is known as soul solid and gas is a solid foam solid and liquid would be a solid emulsion. And lastly, which is what we're looking for a solid solid immersion, excuse me, colloid, a solid solid, colloid is known as a solid soul. And so the given which is one solid dispersed in another is known as a solid soul. Meaning our answer is going to be option D in the multiple choice and there you have it. So with that being said, thank you so very much for watching and I hope you found this helpful.