Question

Sugar is soluble in water due to:

• A. High solvation energy
• B. Hydrogen bond formation with water
• C. High dipole moment of water
• D. Ionic charachter of sugar

Answer 1

The correct option is B

Hydrogen bond formation with water

Explanation for correct option

Option (B) Hydrogen bond formation with water.

• The polar water molecules have the capability to attract the negative and positive areas on the polar sucrose molecules which makes sucrose dissolve in water.
• Sucrose has some polar parts that interact with polar water molecules forming a bond.

Explanation for incorrect option

Option (A) High Solvation Energy :

• Solvation energy is the change in the Gibbs free energy of a solvent when a solute is dissolved in that solvent.
• Sugar solution does not have much solvation energy.
• Thus it is an incorrect option

Option (C) High dipole moment:

• Sucrose is not a polar compound and have some polar parts, thus does not have a dipole moment.
• Thus this option is incorrect

Option (D) Ionic character of sugar

• sugar is a covalent compound and does not have ionic character.
• Thus it is an incorrect option