Which of the following is a homogeneous mixture? a. sodium chloride b. oxygen c. salad d. salt water

Option (d) is the correct answer.

Explanation:

A mixture in which solute particles are unevenly distributed into the solvent then it is known as a heterogeneous mixture.

For example, salad is a heterogeneous mixture.

Components of a mixture never combine chemically with each other.

A homogeneous mixture is defined as the mixture in which solute particles are evenly distributed in a solvent.

A homogeneous mixture is a clear solution.

For example, salt dissolved in water is a homogeneous mixture.

Sodium chloride is a chemical compound and not a mixture. Whereas oxygen is an element and not a mixture.

Thus, we can conclude that out of the given options salt water is a homogeneous mixture.

a electronegativity decreases beacuse the size of nucleus is bigger.