Which Cations of the Group 2 Form the Least Stable

question 10

Multiple Choice

Which cations of the Group 2 form the least stable complexes?
(i) Be²⁺ and Mg²⁺
(ii) Ca²⁺
(iii) Sr²⁺ and Ba²⁺

• A) (i)
• B) (ii)
• C) (iii)

---

Definitions:

Covariance of Returns

A measure used in finance to assess how two investments move in relation to each other over a period.

Correlation Coefficient

A statistical measure that calculates the strength and direction of the relationship between two variables or assets.

Diversification

A risk management technique that mixes a wide variety of investments within a portfolio to minimize the impact of any single asset's performance.

Negatively Correlated

Refers to two variables that move in opposite directions, meaning when one variable increases, the other decreases, and vice versa.