Question

The total number of ions produced from the compound \(\text{Cr}(\text{NH}_3)_6]\text{Cl}_3\) in aqueous solution is:

• A. 2
• B. 3
• C. 4
• D. 5

Answer 1

The Correct Option is C

The total number of ions generated by \([\text{Cr}(\text{NH}_3)_6]\text{Cl}_3\) in water is determined by its dissociation:

1. The compound comprises the complex ion \([\text{Cr}(\text{NH}_3)_6]^{3+}\) and chloride ions Cl^-.
2. In water, it dissociates as follows: \[[\text{Cr}(\text{NH}_3)_6]^{3+} + 3\text{Cl}^- \]
3. This yields one \([\text{Cr}(\text{NH}_3)_6]^{3+}\) ion and three Cl^- ions.
4. The total ion count is \(1 + 3 = 4\).

Therefore, 4 ions are produced in the solution.