Coodination Compounds - Quiz 11

Coordination Compounds Quiz-11

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. 
The intense blue colour of Prussian blue salts arises from which one of the following?

•  d-d transition
•  Inter valence electron transfer
•  Ligand to metal charge transfer
•  Metal to ligand chare transfer

Solution
(b)

Q2. 
NiCl_2 {P(C_2 H_5 )_2 (C_6 H_5 )}_2 exhibits temperature dependent magnetic behavior (paramagnetic/diamagnetic) the coordination geometries of Ni^(2+) in the paramagnetic and diamagnetic states are respectively

•  Tetrahedral and tetrahedral
•  Square planar and square planar
•  Tetrahedral and square planar
•  Square planar and tetrahedral

Solution
(c)

Q3. The reaction between metallic silver and aqueous NaCN forming a soluble complex occurs in the presence of

•  Nitrogen
•  Helium
•  Argon
•  Oxygen

Solution
(d)

Q4. Which complex gives three chloride ions per formula unit?

•  CrCl_3∙6H_2 O
•  CrCl_3∙5H_2 O
•  CrCl_3∙4H_2 O
•  All of these

Solution
(a)

Q5.The spin only magnetic moment value (in Bohrmagneton units) of Cr(CO)_6 is

•  0
•  2.84
•  4.90
•  5.92

Solution
(a)

Q6. The crystal field splitting energy for octahedral (∆_0) and tetrahedral (∆_t) complexes is related as

•  ∆_t=-4/9 ∆_o
•  ∆_t= 1/2 ∆_o
• ∆_o= -2∆_t
•  ∆_o= -4/9 ∆_t

Solution
(a)

Q7.Which one of the following compounds has tetrahedral geometry

•  [Ni(CN)_4 ]^(2- )
•  [NiCl_4 ]^(2-)
•  [PdCl_4 ]^(2-)
•  [Pd(CN)_4 ]^(2-)

Solution
(b)

Q8.If there is 100% ionisation of this complex A compound has the empirical formula CoCl_3∙5NH_3, When an aqueous solution of this compound is mixed with excess silver nitrate, 2 moles ofAgCl precipitate per mol of compound. On reaction with excess HClno NH_4^+ is detected, its 1 M solution at 300 k will have osmotic pressure equal to

•  8.21 atm
•  24.63 atm
•  49.28 atm
•  73.89 atm

Solution
(d)

Q9.Which of the following compounds show optical isomerism?
I. Cis-[Co(NH_3 )_4 Cl_2 ]^+
II.Trans-[Co(en)_2 Cl_2 ]^+
III.Cis-[Co(en)_2 Cl_2 ]^+
IV.[Co(en)_3 ]^(3+)
Select the correct answer using the codes given below

•  I and IV
•  II and III
•  III and IV
•  I,III and IV

Solution
(d) II does not form enantionmers

Q10. Which kind of isomerism is exhibited by octahedral Co(NH_3 )_4 Br_2 Cl ?

•  Geometrical and ionisation
•  Geometrical and optical
•  Geometrical and optical
• Geometrical only

Solution
(a)