Which of the following will dissolve to form a molecular solution?

Question

Im not exactly sure how to go about this question, at first I thought looking at the solubility table but that left me more confused, so any explanation would be very much appreciated. Thank you! :)

Here are the given answers:

A. H₂SO₄

B. AgNO₃

C. Ca(OH)₂

D. C₆H₁₂O₆

Answer 1

The key to this answer is knowing the difference between a molecular solution and an ionic solution.

An ionic solution is a solution that contains ions (molecules or atoms with positive/negative charges). In this case:

A. H₂SO₄ will dissociate into H⁺ and SO₄^2- ions.

B. AgNO₃ will dissociate into Ag⁺ and NO₃^-

C. Ca(OH)₂ will dissociate into Ca²⁺ and OH^-

D. C₆H₁₂O₆ will not dissociate into ions.

You could figure this out a few different ways. First, C₆H₁₂O₆ is the only molecule in this list that does not include any of the common polyatomic ions (For example, NO₃^-, PO₄^3-, etc.) Another way would be to notice that C₆H₁₂O₆ doesn't fall into any of the categories in the solubility rules. C₆H₁₂O₆ (glucose) is a good molecule to be able to recognize because it's is extremely common in the physical sciences.