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

1.	9	2.	6
3.	7	4.	8

Jahn-Teller effect is not observed in high spin complexes of?

1. d⁷

2. d⁸

3. d⁴

4. d⁹

A Planar Complex (Mabcd) gives –

1. Two Optical isomer 

2. Two geometrical isomer

3. Three optical isomer 

4. Three geometrical isomers

Lead poisoning in the body can be removed by:
1. EDTA in the form of calcium dihydrogen salt
2. cis-platin
3. Zeisse’s salt
4. DMG

$\left[\mathrm{Cr}{\left({\mathrm{NH}}_3\right)}_5\mathrm{Br}\right]Cl$ and $\left[\mathrm{Cr}{\left({\mathrm{NH}}_3\right)}_5\mathrm{Cl}\right]Br$  can be distinguished by and isomerism shown is:

1. ${\mathrm{BaCl}}_2$, ionisation

2. ${\mathrm{AgNO}}_3$, ionisation

3. ${\mathrm{AgNO}}_3$, coordinate

4. ${\mathrm{BaCl}}_2$, linkage

Which of the following is correct IUPAC name of any complex compound.
(A) Tris (acetyl acetonato) iron (III) chloride
(B) Hexachloroplatinum (IV) tetraammine dicyano platinate (IV)
(C) Ammine bromochloro methylamine platinum (II)
(D) Cis dichloro (ethylenediamine) platinum (II)

Which of the following facts about the complex [Cr(NH₃)₆]Cl₃ is wrong?

1. The complex is an ourter orbital complex

2. The complex gives white precipitate with silver nitrate solution

3. The complex involves d²sp³ hybridization and is octahedral in shape

4. The complex is paramagnetic

In [Cr(C₂O₄)₃]^3-, the isomerism shown is

(1) Ligand

(2) Optical

(3) Geometrical

(4) Ionization

Among the following complexes (K-P)

$K_3\left[Fe{\left(CN\right)}_6\right(K),<mspace\; width="1em"></mspace>[Co{\left(N{H}_3\right)}_{6}C{l}_3\left(L\right),<mspace\; width="1em"></mspace>$
$N{a}_3\left[Co{\left(oxalate\right)}_3\right]\left(M\right),<mspace\; width="1em"></mspace>\left[Ni{\left(H_{2}O\right)}_6\right]C{l}_2<mspace\; width="1em"></mspace>\left(N\right),<mspace\; width="1em"></mspace>$
$K_2\left[Pt{\left(CN\right)}_4\right(O)<mspace\; width="1em"></mspace>and<mspace\; width="1em"></mspace>[Zn{\left(H_{2}O\right)}_6]{\left(N{O}_3\right)}_2<mspace\; width="1em"></mspace>(P)$

The diamagnetic complexes are-

(1) K, L, M, N

(2) K, M, O, P

(3) L, M, O, P

(4) L, M, N, O

Geometrical shapes of the complexes formed by the reaction of $N{i}^{2+}<mspace\; width="1em"></mspace>with<mspace\; width="1em"></mspace>C{l}^{-},<mspace\; width="1em"></mspace>C{N}^{-}<mspace\; width="1em"></mspace>and<mspace\; width="1em"></mspace>H_{2}O$ respectively, are

1. Octahedral, tetrahedral and square planar

2. Tetrahedral, square planar and octahedral

3. Square planar, tetrahedral and octahedral

4. Octahedral, square planar and octahedral