Coordination compounds - Quiz 5

Coordination Compounds Quiz-5

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. 
Geometrical shapes of the complexes formed by the reaction of Ni^(2+) with Cl^-,CN^- and H_2 O , respectively, are

•  Octahedral, tetrahedral and square planar
•  Tetrahedral ,square planar and octahedral
•  Square planar ,tetrahedral and octahedral
•  Octahedral , square planar and octahedral

Solution
(b)

Q2. 
Geometrical shapes of the complexes formed by the reaction of Ni^(2+) with CN^-∙CN^-andH_2 O respectively, are

•  Octahedral, tetrahedral and square planar
•  Tetrahedral, square planar and octahedral
•  Square planar, tetrahedral and octahedral
•  Octahedral, square planar and octahedral

Solution
(b)

Q3. The correct structure of ethylenediaminetetraacetic acid (EDTA) is

•  
  
•  
  
•  
  
•  
  

Solution
(c)

Q4. Which has maximum coordinating (donor) points?

•  DMG
•  EDTA
•  En
•  Py

Solution
(b)
DMG, en: Bidentate
EDTA : Hexadentate
py : Unidentate

Q5.The correct structure of ethylenediaminetetraacetic acid (EDTA) is

•  
  
•  
  
•  
  
•  
  

Solution
(c)

Q6. The volume (in mL) of 0.1 M AgNO3 required for complete precipitation of chloride ions present in 30 mL of 0.01 M solution of [Cr(H_2 O)_5 Cl] Cl_2 , as silver chloride is close to

•  3
•  4
• 5
•  6

Solution
(d)

Q7.The ionisation isomer of [Cr(H_2 O)_4 Cl(NO_2)C] is

•  [Cr(H_2 O)_4 (O_2 N)] Cl_2
•  [Cr(H_2 O)_4 Cl_2](NO_2)
•  [Cr(H_2 O)_4 Cl (ONO)] Cl
•  [Cr(H_2 O)_4 Cl (ONO)] Cl

Solution
(b) The ionisation isomer of [Cr(H_2 O)_4 Cl (NO_2)]Cl is [Cr(H_2 O)_4 Cl_2](NO_2) because of exchanging of ligand and counter ions.

Q8.Which of the following complexes is not a chelate?

•  Bis (dimethylglyoximato) nickel (II)
•  Potassium ethylenediaminetetrathiocyanato chromate (III)
•  Potassium ethylenediaminetetrathiocyanato chromate (III)
•  Trans-diglycinatoplatinum (II)

Solution
(c) [Co(NH_3 )_4 (CO_3 )_ ]NO_3 No chelation

Q9.Dipole moment will be zero in complexes
I. [Ni(CN)_4 ]^(2-)II. Cis-Pt[(NH_3 )_2 Cl_2III. trans-[Pt(NH_3 )_2 Cl_2]

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

Solution
(b)

Q10. 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. Hence, it is

•  All theCl show primary valency (PV)
•  Two Clshow (PV) and one Cl secondary valency (SV)
•  Two Cl show (PV) and one Cl (PV) as well as (SV)
• All the Cl show (SV)

Solution
(c)