Many Metal Cations Produce Aqueous Solutions That Have a PH

question 82

Multiple Choice

Many metal cations produce aqueous solutions that have a pH different from 7. Which one of the following statements A-D about this phenomenon is not correct? If all are correct, respond E.

• A) For a given metal, the cation with the higher oxidation number will produce the more acidic solution, for example, Fe³⁺(aq) is more acidic than Fe²⁺(aq).
• B) The Lewis acidity of the cation is a good measure of its ability to produce an acidic solution.
• C) Small highly charged main group metal cations, such as Al³⁺, produce acidic aqueous solutions.
• D) Alkali metal cations, such as Na⁺ and K⁺, have a negligible effect on the pH of a solution.
• E) Statements A-D are all correct.

---

Definitions:

Intentional Fraud

Deliberate deception to secure unfair or unlawful gain, or to deprive a victim of a legal right.

Punitive Damages

Monetary compensation awarded in lawsuits as a punishment to the defendant for egregious or harmful conduct, beyond compensatory damages.

Rescission

The act of revoking, cancelling, or annulling a contract, returning all parties involved to their positions prior to the agreement, often due to misrepresentation, fraud, or mutual mistake.

Materiality

The significance of information or an event in influencing decisions or actions based on its potential impact.