Question

Which of the following is a homogeneous solution?
A. Muddy water
B. Bread
C. Concrete
D. A solution of sugar in ${H_2}O$

Answer 1

Hint: Homogeneous means ‘of same kind’. In chemistry, it means substances in the same phase. More precisely, homogenous solutions are solutions with uniform composition and properties throughout the solution. For example, coffee, milk etc.

Complete step by step solution:
Homogeneous solutions are the solutions with uniform composition. That means, a homogeneous solution has equal concentration of the substances in it in every part of the solution. For example, when we mix coffee in boiled water, we get equal concentration of coffee in the water. Hence, it is a homogeneous solution.
A. Muddy water: In case of muddy waters, the concentration of mud can be different in different parts of water. Hence, it cannot be a homogeneous solution.
B. Bread is a staple food prepared from dough and flour and water. We cannot assure that the concentration of each substance in each piece of bread will be the same after its solidification. Also, the question is about the solution and bread is solid.
C. Concrete is a composite material composed of fine and coarse aggregates bundled together with a fluid cement paste. Since it is a solid thing.
D. The solution of sugar in water: When we mix sugar properly in water, sugar melts down into the water in equal concentration. For example, when we make tea by mixing sugar in water, we don’t feel that one sip of tea is too sweet and some other sip of tea is less sweet. So the concentration of sugar is equal in the water. Hence, it is a homogeneous solution.

Therefore, from the above explanation, the correct answer is, option (D) A solution of sugar in ${H_2}O$

Note:
To solve this question, you need to know the meaning of the word, ‘homogeneous’. Knowing the meaning of this word would make the question very easy as then, it becomes easy to eliminate the wrong answers. And we all know that sugar mixes in the water. So option (D) becomes an easy pick. That is why, you need to know the meanings of technical terms.