AIEEE 2004 (Chemistry) Mock Test

Excess $\text{KI}$ reacts with ${\text{CuSO}}_4$ solution and then ${\text{Na}}_2{\text{S}}_2{\text{O}}_3$ solution is added to it. Which of the following statements is incorrect for this reaction?

Among the properties (a) reducing (b) oxidizing (c) complexing, the set of properties shown by ${\text{CN}}^{-}$ ion towards metal species is:

The coordination number of the central metal atom in a complex is determined by:

Which one of the following complexes is an outer orbital complex?

Coordination compounds have great importance in biological systems. In this context which of the following statements is incorrect?