Colloid is an example of non-uniform mixture. Which of the following is NOT a colloid?

Which household solution fights against bad breath and prevents tooth decay?

This is a kind of mixture that has particles that do not completely dissolve and settle down at the bottom.

When mixtures are combined and left undisturbed, some particles may be suspended. Which of the following mixtures shows suspension?

Which household solution is used to disinfect our hands against viruses and bacteria?