The ratio of cis and trans-isomers of the complex $[{\mathrm{Ma}}_2\mathrm{bcde}{]}^{\mathrm{n}\pm }$ is:

(1) 5:3       

(2) 2:1       

(3) 7:3     

(4) 3:1

$\left[{\mathrm{PdCl}}_2\right({\mathrm{PMe}}_3{)}_2]$ is a diamagnetic complex of Pd(II). How many total isomers are possible of analogous paramagnetic complex of Ni(II)?

1. Zero         

2. 1             

3. 2         

4. 3

Complex compound(s) which is optical active and does not depend upon the orientation

of the ligands around metal cation :

(i) $\left[{\mathrm{CoCl}}_3\right({\mathrm{NH}}_3{)}_3]$                      (ii) $\left[\mathrm{Co}\right(\mathrm{en}{)}_3{\mathrm{Cl}}_3$

(iii)$\left[\mathrm{Co}\right({\mathrm{C}}_2{\mathrm{O}}_4{)}_2({\mathrm{NH}}_3{)}^{-}$                (iv) $\left[{\mathrm{CrCl}}_2\right({\mathrm{NH}}_3{)}_{2}9\left(\mathrm{en}\right){]}^{+}$

(1) (ii),(iii) and (iv)   

(2) (i),(ii) and (iv)     

(3)  (ii) and (iv)     

(4) only (ii)

Choose the correct code regarding,
possible number of geometrical isomers exhibited by the following complexes:

(I) $\left[{\mathrm{CrCl}}_2\right({\mathrm{NO}}_2{)}_2({\mathrm{NH}}_3{)}_2{]}^{-}$                         (II) $\left[\mathrm{Co}\right({\mathrm{NO}}_2{)}_3\left({\mathrm{NH}}_3{)}_3\right]$

(III)  $\left[\mathrm{PtCl}\right({\mathrm{NO}}_2\left({\mathrm{NH}}_3\right)\left(\mathrm{py}\right)]$                        (IV) $\left[\mathrm{PtBrCl}\right(\mathrm{en}\left)\right]$
 

         (I)     (II)     (III)      (IV)                  

(a)     4        2         3         1         

(b)     5        2        4           0
(c)      3       2          0         1         
(d)      5        2        3           0

Total number of geometrical isomers  possible for complex $\left[\mathrm{Mab}\right(\mathrm{AB}{)}_2{]}^{\mathrm{n}\pm }$ are : 

(1) 5         

(2)  4       

(3)  3         

(4)  6

$\left[{\mathrm{CoCl}}_2\right({\mathrm{NH}}_3{)}_4{]}^{+} + {\mathrm{Cl}}^{-}\stackrel{}{\to } \left[{\mathrm{CoCl}}_3\right({\mathrm{NH}}_3{)}_3] + {\mathrm{NH}}_3$ . If in this reaction two isomers of the product are obtained , the true statement for the initial (reactant) complex is :

(1) Compound is in cis-form .                      

(2) Compound is in trans-form.

(3) Compound is in both (cis and trans) form.

(4) Can't be predicted .

Select the correct statement about given square planar complex

(1) It has no geometrical isomer

(2) It is optically active because square planar complex have plane of symmetry

(3) It is optically inactive because square planar complex have plane of symmetry

(4) It is optically active because it hass symmetric carbon

Select the correct code regarding total number of space isomers for the following compounds:

(I)$[{\mathrm{Ma}}_3{\mathrm{b}}_2\mathrm{c}{]}^{\mathrm{n}\pm }$          (II) $\left[\mathrm{M}\right(\mathrm{AB}{)}_3{]}^{\mathrm{n}\pm }$      (III) $[{\mathrm{Ma}}_2{\mathrm{b}}_2{\mathrm{c}}_2{]}^{\mathrm{n}\pm }$

                (I)         (II)       (III)                              (I)         (II)       (III)

(a)             4           4           6                       (b)      4            3           5

(c)              3          3            5                      (d)       3            4           6

How many geometrical isomers are possible or $\left[{\mathrm{Pd}}^{2+}\right({\mathrm{NH}}_2-\mathrm{CH}\left({\mathrm{CH}}_3\right)-{\mathrm{CO}}_2^{-}{)}_2]$

(a) 2          (b)  3         (c)  4           (d)  6

Total number of stereisomers of $\left[\mathrm{Co}\right(\mathrm{acac}{)}_2\mathrm{BrCl}{]}^{⊝}$ are:

(1) 4         

(2) 3         

(3) 6           

(4) 2