Chemistry MCQs for NEET — Practice Questions with Answers

4         

3         

6           

2

 $\left[\mathrm{Fe}\right(\mathrm{DMG}{)}_2$                         

 $\left[\mathrm{Be}\right(\mathrm{gly}{)}_2]$

 $\left[\mathrm{PdClBr}\right(\mathrm{gly}\left)\right]$                       

 $\left[\mathrm{Cd}\right({\mathrm{NH}}_3\left)\mathrm{Cl}\right(\mathrm{gly})$

trans-$\left[\mathrm{Co}\right(\mathrm{gly}{)}_3]$                           

 $\left[\mathrm{Ni}\right(\mathrm{DMG}{)}_2]$

cis-$\left[\mathrm{Cu}\right(\mathrm{gly}{)}_2$                               

 $\left[\mathrm{Zn}\right(\mathrm{en}\left)\right(\mathrm{gly}){]}^{+}$

cis-$\left[{\mathrm{CrCl}}_3\right({\mathrm{NH}}_3{)}_3]$                         

cis-$\left[\mathrm{Co}\right({\mathrm{NH}}_3{)}_4{\mathrm{Cl}}_2{]}^{+}$

 $\left[\mathrm{Co}\right(\mathrm{en}{)}_3{]}^{3+}$                                   

trans-$\left[\mathrm{Co}\right(\mathrm{en}{)}_2{\mathrm{Cl}}_2{]}^{+}$

Tris(acetylacetonato)iron(III) chloride

Hexachloroplatinum(IV)tetraammine dicyano platinate(IV)

Ammine bromochloro methylamine platinum (II) 

cis-dichloro(ethylenediamine) platinum (II)

Diammineethylenediaminedithiocyanato$-$S-platinum (II)

 Diammineethylenediaminedithiocyanato$-$S-platinate (IV) ion.

 Diammineethylenediaminedithiocyanato$-$S-platinum (IV) ion.

Diamminebis (ethylenediamine) dithiocyanato$-$S-platinum (IV) ion.

Sodium (ethylenediaminetetraacetato)chromate (II) $-{\mathrm{Na}}_2\left[\mathrm{Cr}{\left({\mathrm{CH}}_3\mathrm{COO}\right)}_4\left(\mathrm{en}\right)\right]$

Dichlorobis (ethane-1, 2-diamine) chromate(III) ion $-{\left[\mathrm{Co}{\left(\mathrm{en}\right)}_2{\mathrm{Cl}}_2\right]}^{+}$

Tris(bipyridine) iron(II) ion $-{\left[\mathrm{Fe}{\left({\mathrm{NH}}_4{\mathrm{C}}_5-{\mathrm{C}}_5{\mathrm{H}}_4\mathrm{N}\right)}_3\right]}^{2+}$

Ammineaquadibromidocopper(II) $-\left[{\mathrm{Cu}\left({\mathrm{H}}_2\mathrm{O}\right)\left({\mathrm{NH}}_3\right)\mathrm{Br}}_2\right]$

34, 35 

34, 36

36, 36                                       

36, 35

 ${\left[\mathrm{Ni}{\left({\mathrm{NH}}_3\right)}_6\right]}^{2+}$                                     (p) ${\mathrm{d}}^2{\mathrm{sp}}^3$ and diamagnetic

 ${\left[\mathrm{Cr}{\left({\mathrm{NH}}_3\right)}_6\right]}^{3+}$                                     (q) ${\mathrm{sp}}^3{\mathrm{d}}^2$ and diamagnetic

 ${\left[\mathrm{Co}{\left({\mathrm{NH}}_3\right)}_6\right]}^{3+}$                                     (r) ${\mathrm{sp}}^3{\mathrm{d}}^2$ and two unpaired electrons.

 ${\left[\mathrm{Zn}{\left({\mathrm{NH}}_3\right)}_6\right]}^{2+}$                                     (s) ${\mathrm{d}}^2{\mathrm{sp}}^3$ and three unpaired electrons.

$$\begin{gathered} \mathrm{a} \mathrm{b} \mathrm{c} \mathrm{d} \\ \left(\mathrm{A}\right) \mathrm{r} \mathrm{s} \mathrm{p} \mathrm{q} \\ \left(\mathrm{B}\right) \mathrm{s} \mathrm{r} \mathrm{q} \mathrm{p} \\ \left(\mathrm{C}\right) \mathrm{r} \mathrm{s} \mathrm{q} \mathrm{p} \\ \left(\mathrm{D}\right) \mathrm{p} \mathrm{q} \mathrm{r} \mathrm{s} \end{gathered}$$

 ${\left[\mathrm{Cr}{\left({\mathrm{H}}_2\mathrm{O}\right)}_6\right]}^{2+} \left(\mathrm{aq}\right) \mathrm{and} {\left[\mathrm{Cr}\left(\mathrm{CN}\right)+\right]}^{4-} \left(\mathrm{aq}\right)$ are high spin and low spin complexes respectively but

     both have same number of unpaired electrons.

 ${\left[\mathrm{V}{\left({\mathrm{NH}}_3\right)}_6\right]}^{3+}$ is inner orbital complex and paramagnetic with two unpaired electrons.

 ${\left[\mathrm{Co}\left({\mathrm{CN}}_6\right)\right]}^{4-}$ is outer orbital complex and paramagnetic with three unpaired electrons.

 $\left[\mathrm{Mn}{\left(\mathrm{NO}\right)}_3\left(\mathrm{CO}\right)\right]$ is square planar and diamagnetic.

Note: $\mathrm{NO}$ is three electrons donor.