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 ?
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a
CoCl3·5NH3
b
CoCl3·6NH3
c
CoCl3·3NH3
d
CoCl3·4NH3
answer is C.
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Detailed Solution
For octahedral complexes, coordination number is 6 . Hence, CoCl3·3NH3 i.e., CoNH33Cl3 will not ionise andwill not give test for Cl- ion with silver nitrate.