JEE Mains · Chemistry · STD 12 - 5. Co-ordination chemistry
Reaction of \(\left[ Co \left( H _{2} O \right)_{6}\right]^{2+}\) with excess ammonia and in the presence of oxygen results into a diamagnetic product. Number of electrons present in \(t _{2 g }\)-orbitals of the product is ..... .
- A \(4\)
- B \(6\)
- C \(3\)
- D \(2\)
Answer & Solution
Correct Answer
(B) \(6\)
Step-by-step Solution
Detailed explanation
\(\left[ Co \left( H _{2} O \right)_{6}\right]^{2+}+ NH _{3}(\) excess \() \rightarrow\left[ Co \left( NH _{3}\right)_{6}\right]^{3+}+6 H _{2} O\) Diamagnetic \(\rightarrow\) Low spin complex \(Co ^{3+} \Rightarrow 3 d ^{6} 4 s ^{0}\)…
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