Question

Which of the compounds show ionization isomerism?

• A. $\left[ Cr \left( NH _{3}\right)_{6}\right] Cl _{3}$
• B. $\left[ Cr ( en )_{3}\right] Cl _{3}$
• C. $\left[ Co \left( NH _{3}\right)_{5} Br \right] SO _{4}$
• D. Both (a) and (b)

Answer 1

Answer: (C)

$NH _{3}$ and en can't ionize

For $3^{\text {rd }}$ option,

$\left[ Co \left( NH _{3}\right)_{5} Br \right] SO _{4}$ and $\left[ Co \left( NH _{3}\right) SO _{4}\right] Br$ are ionization isomers.