Coordination Compounds Quiz 12

Coordination Compounds Quiz-12

Dear Readers,

JEE Advanced is a high level exam that checks your concept by putting various types of questions. The questions are in a different format from JEE mains, herein the questions are : single correct multiple choice questions, multiple correct multiple choice questions, statement based questions and comprehension type questions..

Q1. 
Primary and secondary valency of Pt in [Pt(en)_2 Cl_2 ]Cl_2 are

•  4,4
•  4,6
•  6,6
•  4,2

Solution
(b)
Two chlorine satisfy (PV)
Two chlorine satisfy (PV) and (SV)
Two en satisfy (SV)
Since,(en) is bidentate,
Thus, PV = 4, SV = 6
Note C.N. = SV
O.N. = PV

Q2. 
Which is Prussian blue

•  KF_e^III [Fe^II (CN)_6]
•  KFe^III [Fe^III (CN)_6]
•  K_2 [Fe^II (CN)_6]
•  K_3 [Fe(CN)_6]

Solution
(c)

Q3. In the complex PtCl_4∙5NH_3

•  Two Cl^- ligands satisfy primary as well as secondary valencies
•  Four NH_3 ligands satisfy secondary valency
•  Four NH_3 ligands satisfy secondary valency
•  All the above are correct statements

Solution
(d)

Q4. Select the correct statement about the complex [Co(NH_3 )_5 SO_4 ]Br

•  Its ionization isomer is [Co(NH_3 )_5 Br]SO_4
•  It gives yellow precipitate with AgNO_3
•  Its ionization isomer give white precipitate with BaBl_2
•  All the above are correct statements

Solution
(d)

Q5.In the complex [Fe(NH_3 )_6 ]^(3+)

•  Fe^(3+) is a Lewis acid
•  NH_3is a Lewis base
•  Both (a ) and (b) correct
•  None is Correct

Solution
(c)
Fe^(3+)+ 6NH_3→[Fe(NH_3 )_6 ]^(3+)
Lewis acid Lewis base

Q6. Following ligands can show linkage isomerism

•  CNS
•  NO_2
• CN
•  All of these

Solution
(d)

Q7.Among the following complexes (K-P),
K_3 [Fe(CN)_6](K) ,[Co(NH_3 )_6 ] Cl_3 (L),
Na_3 [Co(ox)_3](M)
[Ni(H_2 O)_6 ] Cl_2 (N) ,and
[Zn(H_2 O)_6 ] (NO_3 )_2 (P) the diamagnetic complexes

•  K, L, M, N
•  K, M, O, P
•  L, M, O, P
•  L, M, N, O

Solution
(c)

Q8.Which one of the following is an example of coordination isomerism

•  [Co(NH_3 )_5 Br]SO_4and [Co(NH_3 )_5 SO_4 ]Br
•  [Co(NH_3 )_5 NO_2 ]Cl_2 and [Co(NH_3 )_5 ONO]Cl_2
•  [Cr(H_2 O)_6 Cl_3and [Cr(H_2 O)_5 Cl]Cl_2∙H_2 O
•  [Cr(NH_3 )_6 ][Co(CN)_6 ]and [Co(NH_3 )_6][Cr(CN)_6

Solution
(d) In which cation and anion both are complexes

Q9.Which of the following complexes is diamagnetic?

•  [Fe(CN)_6 ]^(4-)
•  [Cu(NH_3 )_4 ]^(2+)
•  [Ti(H_2 O)_6 ]^(3+)
•  [Ni(en)_2 ]^(2+)

Solution
(a) Species with all paired electrons is diamagnetic

Q10. Which is used in cancer-chemotherapy?

•  Cis-platin
•  Zeise’s salt
•  Both (a) and (b)
• None of these

Solution
(a)