NEET2015ChemistryCoordination CompoundsActual
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 ?
Options
- AC o C l 3 ⋅ 3 N H 3
- BC o C l 3 ⋅ 4 N H 3
- CC o C l 3 ⋅ 5 N H 3
- DC o C l 3 ⋅ 6 N H 3
Correct answer
A. C o C l 3 ⋅ 3 N H 3
Step-by-step solution
In C o C l 3 ⋅ 3 N H 3 the complex can be written as [ C o C l 3 N H 3 3 ] With C o 3 + oxidation state 3, C l - ions & 3, N H 3 molecules be with in the co-ordination sphere Co - Cl bonds in co-ordination sphere not ionisable.