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JEE Mains · Chemistry · STD 12 - 5. Co-ordination chemistry

\(1\,L,0.02\,M\) solution of \(\left[ Co \left( NH _3\right)_5 SO _4\right] Br\) is mixed with \(1\,L,0.02\,M\) solution of \(\left[ Co \left( NH _3\right)_5 Br _3\right] SO _4\). The resulting solution is divided into two equal parts (X) and treated with excess \(AgNO _3\) solution and \(BaCl _2\) solution respectively as shown below: \(1\,L\) Solution \(( X )+ AgNO _3\) solution (excess) \(\rightarrow Y\) \(1\,L\) Solution \(( X )+ BaCl _2\) solution (excess) \(\rightarrow Z\) The number of moles of \(Y\) and \(Z\) respectively are

  1. A \(0.02,0.02\)
  2. B \(0.01,0.01\)
  3. C \(0.02,0.01\)
  4. D \(0.01,0.02\)
Verified Solution

Answer & Solution

Correct Answer

(B) \(0.01,0.01\)

Step-by-step Solution

Detailed explanation

\begin{array}{l}{\left[ Co \left( NH _3\right)_5 SO _4\right] Br + AgNO _3 \rightarrow AgBr \downarrow} \\ 0.01\, mol \qquad\quad \text { excess } \quad 0.01\,Mol \\ {\left[ Co \left( NH _3\right)_5 Br \right] SO _4+ BaCl _2 \rightarrow BaSO _4 \downarrow} \\ 0.01 mol…