The geometry and magnetic behaviour of the complex [Ni(CO)₄] are:
1. Square planar geometry and Diamagnetic
2. Tetrahedral geometry and Diamagnetic
3. Square planar geometry and Paramagnetic
4. Tetrahedral geometry and Paramagnetic

Iron carbonyl, $\mathrm{Fe}{\left(\mathrm{CO}\right)}_5$, is classified as:

The number of possible isomers for the complex $\left[\mathrm{Co}{\left(\mathrm{en}\right)}_2{\mathrm{Cl}}_2\right]Cl$ will be (en=ethylenediamine):

The hybridization involved in the complex ${\left[\mathrm{Ni}{\left(\mathrm{CN}\right)}_4\right]}^{2-}$is:
(Atomic number of Ni=28)

The sum of the coordination number and oxidation number of the metal M in the complex [M(en)₂(C₂O₄)]Cl is:

The IUPAC name of complex ion, [Fe(CN)₆]^3- is:

1. Hexacyanoiron(III) ion

2. Hexacyanitoferrate(III) ion

3. Tricynoferrate(III) ion

4. Hexacyanidoferrate(III) ion

An ion, among the following, that has a magnetic moment of 2.84 BM is:
(At. no. Ni = 28, Ti = 22, Cr = 24, Co = 27)

1. Ni²⁺
2. Ti³⁺
3. Cr²⁺
4. Co²⁺

Cobalt(III) chloride forms several octahedral complexes with ammonia.
A compound among the following that does not give a test for chloride ions with silver nitrate at 25 °C is:

An anticancer agent among the following is: