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NEET · Chemistry · STD 12 - 5. Co-ordination chemistry

Cobalt \((III)\) chloride forms several octahedral complexes with ammonia. Which of the following will not give test for chloride ions with silver nitrate at \(25\,^o C\) ?

  1. A \(CoCl_3 \cdot 5NH_3\)
  2. B \(CoCl_3 \cdot  6NH_3\)
  3. C \(CoCl_3 \cdot  3NH_3\)
  4. D \(CoCl_3 \cdot  4NH_3\)
Verified Solution

Answer & Solution

Correct Answer

(C) \(CoCl_3 \cdot  3NH_3\)

Step-by-step Solution

Detailed explanation

Octahedral complex means it contains '\(6\)' coordinate bond. In \(\mathrm{CoCl}_{3} \cdot 3 \mathrm{NH}_{3}, \mathrm{Cl}\) cannot be outside from coordination sphere