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°C? A. CoCl₃ . ₅NH₃ B. CoCl₂ . ₆N H₃ C. CoCl₃ . ₄NH₃ D. CoC1₃ . ₃N H₃