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

1. Ionisation and \(BaCl_2\)

2. Ionisation and \(AgNO_3\)

3. Coordinate and \(AgNO_3\)

4. Linkage and \(BaCl_2\)

Which of the following is the correct IUPAC name of a complex compound?

The hybridised state of Cu in [Cu(NH${}_3$)${}_4$]${}^{2+}$ is

1. sp

2. sp${}^2$

3. sp${}^3$

4. dsp${}^2$

Which of the following pairs will show the same magnetic moment ('spin only')?

1. [Cr(H₂O)₆]³⁺  and [Fe(H₂O)₅NO]²⁺

2. [Mn(CN)₆]^4- and[Fe(CN)₆]^3-

3. [Ni(CO)₄]$and<mspace\; width="1em"></mspace>[\mathrm{Zn}{\left({\mathrm{NH}}_3\right)}_4{]}^{2+}$

4.  All of the above

Choose the incorrect statement

1.  In ${\left[\mathrm{Fe}{\left(\mathrm{CN}\right)}_6\right]}^{4-}$ Fe—C bond length is smaller than Fe—C bond length in ${\left[\mathrm{Fe}{\left(\mathrm{CN}\right)}_6\right]}^{3-}$

2.  The EAN of Fe in ${\left[\mathrm{Fe}{\left(\mathrm{CN}\right)}_6\right]}^{4-}$ is 36

3.  ${\left[\mathrm{Fe}{\left(\mathrm{CN}\right)}_6\right]}^{3-}$more stable than ${\left[\mathrm{Fe}{\left(\mathrm{CN}\right)}_6\right]}^{4-}$

4.  ${\left[\mathrm{Fe}{\left(\mathrm{Phen}\right)}_3\right]}^{3+}$is more stable than ${\left[\mathrm{Fe}{\left(\mathrm{Phen}\right)}_3\right]}^{2+}$

A solution containing 0.319 g of complex ${\mathrm{CrCl}}_3$. $6{\mathrm{H}}_2\mathrm{O}<mspace\; width="1em"></mspace>$was passed through a cation exchanger and the solution given out was neutralized by 28.5 ml of 0.125 M NaOH. The correct formula of the complex will be [molecular weight of complex = 266.5]

1.  $\left[\mathrm{CrCl}{\left({\mathrm{H}}_2\mathrm{O}\right)}_5\right]{\mathrm{Cl}}_2<mspace\; width="1em"></mspace>·<mspace\; width="1em"></mspace>{\mathrm{H}}_2\mathrm{O}$

2.  $\left[\mathrm{Cr}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]{\mathrm{Cl}}_3$

3.  $\left[{\mathrm{CrCl}}_2{\left({\mathrm{H}}_2\mathrm{O}\right)}_4\right]\mathrm{Cl}<mspace\; width="1em"></mspace>·{\mathrm{H}}_2\mathrm{O}$

4.  All are correct

The oxidation state and effective atomic number of Cr in bis(benzene) chromium are

1.  0, 36

2.  3, 35

3.  2, 36

4.  2, 35

Consider the following complexes:

1. K₂[PtCl₆]

2. PtCl₄.2NH₃ 

3. PtCl₄.3NH₃

4. PtCl₄.5NH₃