Explanation:

Solute and Solvent:
When a substance dissolves in another substance, the substance being dissolved is called the solute, and the substance in which it dissolves is called the solvent. In this case, we have 2 kg of sugar being dissolved in 1 kg of water.

Solute:
The solute is the substance that is being dissolved. In this case, sugar is the solute. It is a solid substance that will dissolve in water.

Solvent:
The solvent is the substance in which the solute dissolves. In this case, water is the solvent. It is a liquid substance that has the ability to dissolve the sugar.

Explanation:
When we dissolve 2 kg of sugar in 1 kg of water, the sugar particles separate and mix with the water particles. The water molecules surround the sugar molecules, forming a solution. The sugar particles become evenly dispersed throughout the water.

Role of Sugar (Solute):
The sugar molecules are the solute in this solution. They have the ability to dissolve in water due to their molecular structure. The sugar molecules are composed of carbon, hydrogen, and oxygen atoms arranged in a specific way. When they come into contact with water, the water molecules are attracted to the sugar molecules and surround them.

Role of Water (Solvent):
The water molecules are the solvent in this solution. Water is a polar molecule, meaning it has a slightly positive end and a slightly negative end. This polarity allows water molecules to interact with other polar molecules, such as the sugar molecules. The positive end of the water molecule is attracted to the negative oxygen and hydrogen atoms in the sugar molecule, while the negative end is attracted to the positive hydrogen and oxygen atoms in the sugar molecule.

Conclusion:
In conclusion, when 2 kg of sugar is dissolved in 1 kg of water, sugar acts as the solute and water acts as the solvent. The water molecules surround and interact with the sugar molecules, resulting in a homogeneous mixture known as a sugar solution.

sugar is solute and water is solvent