Question

Which contributes to the dissolution of sugar in water?

a. the dissociation of an ionic compound in water
b. a strong pull of water molecules on an ionic compound
c. the dissociation of a polar covalent compound in water
d. a strong pull of water molecules on a polar covalent compound

Answer 1

I think the correct answer from the choices listed above is option d. It is the strong pull of water molecules on a polar covalent compound that contributes to the dissolution of sugar in water. Hope this answers the question.

Answer 2

Option C: The dissociation of a polar covalent compound in water.

Sugar is made up of sucrose molecules containing polar covalent bonds. They have same type of oxygen-hydrogen covalent bonds that are present in water.

Since, sugar is not an ionic compound, option a and option b are incorrect. Also, due to same type of bonding in water and sugar molecules there will be no such force of attraction between them, this will opt out the option d.

Thus, dissolution of sugar in water is the dissociation of a polar covalent compound in water and option c is correct.