ABC26IN1002 · Coordination Chemistry
Subject: Inorganic Chemistry · Chapter: Coordination Chemistry · Topic: Electron Transfer Redox · Exam: NET DEC 2011 · Marks: 2 · Difficulty: Medium
For the following outer sphere electron transfer reactions. \[ \begin{array}{l} \left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{2+}+\left[\mathrm{Co}^{*}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+} \rightarrow \left[\mathrm{Co}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}+\left[\mathrm{Co}^{*}\left(\mathrm{NH}_{3}\right)_{6}\right]^{2+} \\ \left[\mathrm{Ru}\left(\mathrm{NH}_{3}\right)_{6}\right]^{2+}+\left[\mathrm{Ru}^{*}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+} \rightarrow \left[\mathrm{Ru}\left(\mathrm{NH}_{3}\right)_{6}\right]^{3+}+\left[\mathrm{Ru}^{*}\left(\mathrm{NH}_{3}\right)_{6}\right]^{2+} \end{array} \]
due to (a)A change from high spin to low spin in $\mathrm{Co}^{*}$ and high spin to low spin in Ru.
(b)A change from high spin to low spin in Co* and low spin to high spin $\mathrm{Ru}^{*}$.
(c)A change from low spin to high spin in $\mathrm{Co}^{*}$ and the low spin state remains unchanged in Ru.
(d)A change from low spin to high spin in $\mathrm{Co}^{*}$ and high spin to low spin in $\mathrm{Ru}^{*}$.
Answer
Explanation
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