Coordination Compounds MCQ

Compounds where a central atom or group of atoms is surrounded by anions or neutral molecules, known as ligands, are called coordination compounds. In these compounds, the central atom or group acts as a Lewis acid, while the ligands, which donate electron pairs, function as Lewis bases. The field of chemistry that focuses on the properties of these compounds is called coordination chemistry. There is no clear boundary between covalent, coordination, and ionic compounds.

A chelating agent has two or more donor atoms to bind to a single metal ion. Which of the following is not a chelating agent?

(a) Thiosulphato
(b) Oxalato
(c) Glycinato
(d) Ethane-1,2-diamine

When 0.1 mol CoCl3(NH3)5 is combined with excess AgNO3, then 0.2 mol AgCl is obtained. The conductivity of the solution suits the

(a) 1:3 electrolyte
(b) 1:1 electrolyte
(c) 3:1 electrolyte
(d) 1:2 electrolyte

Some salts containing two different metallic elements give a test for only one of them in solution; such salts are

(a) Double salts
(b) Normal salts
(c) Complex salts
(d) None of these

The type of isomerism shown by the complex [CoCl2(en)2] is

(a) Geometrical isomerism
(b) Coordination isomerism
(c) Linkage isomerism
(d) Ionization isomerism

IUPAC name of [Pt(NH3)2Cl(NO2)] is

(a) Platinum diamminechloronitrite
(b) Chloronitrito-N-ammineplatinum (II)
(c) Diamminechloridonitrito-N-platinum (II)
(d) Diamminechloronitrito-N-plantinate (II)

Iron carbonyl, Fe(CO)5 is

(a) Tetranuclear
(b) Mononuclear
(c) Dinuclear
(d) Trinuclear

The sum of coordination number and oxidation number of the metal M in the complex [M(en)2(C2O4)]Cl (where (en) is ethylenediamine) is

(a) 9
(b) 6
(c) 7
(d) 8

Which of the following elements does not form a complex with EDTA?

(a) Ca
(b) Mg
(c) Be
(d) Sr

An example of a sigma-bonded organometallic compound is

(a) Grignard reagent
(b) Ferrocene
(c) Cobaltocene
(d) Ruthenocene

In the complex [E(en)2(C2O4)]NO2 (where (en) is ethylenediamine) _ are the coordination number and the oxidation state of the element ‘E’ respectively.

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