Coordination Compounds Test

Question 1
4 / -1

Only One Option Correct Type

Direction (Q. Nos. 1-10) This section contains 10 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONLY ONE is correct.

Q.

Primary and secondary valency of Pt in [Pt(en)₂CI₂] are

A
+ 4 and - 4

B
+ 4 and 6

C
+ 6 and 4

D
+ 2 and 6

Question 2
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If zeise’s salt has the formula [Pt(C₂H₄)CI₃]^-. In this, platinum primary and secondary valency are

A
+ 1 and 3

B
+ 2 and 4

C
+ 3 and 4

D
+ 4 and 6

Question 3
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The two complexes PtCI₄. 2NH₃ and PtCI₄. 2KCI do not give precipitate of AgCI when treate with AgNO₃. The structures of these complexes are

A
[Pt(NH₃)₂CI₄] and K₂[PtCI₆]

B
[Pt(NH₃)₂] Cl₄ and K₂[PtCI₆]

C
[Pt(NH₃)₂CI₂]Cl₂ and K₂[PtCI₄]CI₂

D
[Pt(NH₃)₂CI₄] and K₂[PtCI₅]CI

Question 4
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A cobaltamine has the formula CoCI₃ . xNH₃. This when reacted with AgNO₃ solution, one third of the chloride is precipitated. It can have the structure

A
[Co(NH₃)₆]CI₃

B
[Co(NH₃)₅]CI₂

C
[Co(NH₃)₄CI₂]CI

D
[Co(NH₃)₅H₂O]CI₃

Question 5
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Which is the incorrect ?

A
[Co(NH₃)₄CI₂]⁺ is heteroleptic complex

B
In [Fe(C₂O₄)₃]³⁺ and [Co(en)₃]³⁺, the coordination number of both Fe and Co is 6

C
Ferric alum is a double salt

D
Mohr’s salt is a double salt and do not give test for Fe²⁺ions

Question 6
4 / -1

The spin only magnetic moment value (in Bohr magneton units) of Cr(CO)₆ is

A
0

B
2.84

C
4.90

D
5.92

Question 7
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The anion acetylacetonate (acac) forms chelate with Co³⁺, The ring of the chelate is

A
five membered

B
four membered

C
six membered

D
three membered

Question 8
4 / -1

Oxidation states of iron in the complexes [Fe(H₂O)₅NO]²⁺ and [Fe(CN)₅NO]^2- are

A
+ 1 and + 2

B
+ 1 and + 1

C
+ 2 and + 2

D
+ 2 and + 1

Question 9
4 / -1

Complexes in which the oxidation number of a metal is zero is/are

A
Cr(C₆H₆)₂

B
[Mn(CN)₆]^4-

C
[Ni(CO)₄]

D
All of these

Question 10
4 / -1

An example for bidentate and negatively charged ligand is

A
acetylacetonate (acac)

B
propylene diamine (pn)

C
ethylene diamine (en)

D
bipyridyl (bip

Question 11
4 / -1

An example of double salt is/a

A
hypo

B
bleaching powder

C
common alum

D
carnallite

Question 12
4 / -1

Type of bonding in K₄ [Fe(CN)₆] is/a

A
ionic

B
covalent

C
metallic

D
coordinate covalent

Question 13
4 / -1

The effective atomic number of Fe in Fe(CO)₅ is

A
36

B
24

C
34

D
26

Question 14
4 / -1

Which of the following statements is/are correct?

A
[Co(en)₂NO₂Cl] Br is cationic complex

B
[Co(en)₃]CI₃ produces 3 ions in solution

C
[Fe(CO)₅] is neutral complex

D
[Cu(NH₃)₄]SO₄ is deep blue colour

Question 15
4 / -1

A freshly prepared aqueous solution of Pd(NH₃)₂CI₂ does not conduct electricity, it suggests that

A
the structure of the compound involves covalent bonding only

B
the chlorine atoms must be in coordination sphere

C
the van't Hoff factor of the compound would be unity

D
on adding excess aqueous AgNO₃ to 0.1 L of 0.1 M solution of the compound, 0.02 mole of AgCI would be obtained

Question 16
4 / -1

Comprehension Type

Direction (Q. Nos. 16 and 17) This section contains a paragraph, describing theory, experiments, data, etc. Two questions related to the paragraph have been given. Each question has only one correct answer among the four given options (a), (b), (c) and (d).

Passage

Complex compounds are addition compounds formed by the stoichiometric combination of two or more simple salts but do not decompose into constituent ions completely. The first such complex prepared by Tassaert is hexamine cobalt (III) chloride. Later many such compounds were prepared and their properties were studied. The chloramines complexes of cobalt (III) chromium (III) not only exhibit a spectrum of colours but also differ in the reactivity of their chlorides. Moreover, greater the number of ions produced by a complex in solution, greater is the electrical conductivity. This type of information was obtained for several series of complexes.

Q.

Coordination number of Co in CoCl₃ . 5H₂O is six. The volume of 0.1 N AgNO₃ needed to precipitate the chlorine in 200 mL of 0.01 M solution of complex is

A
140 mL

B
40 mL

C
80 mL

D
20 mL

Question 17
4 / -1

Complex compounds are addition compounds formed by the stoichiometric combination of two or more simple salts but do not decompose into constituent ions completely. The first such complex prepared by Tassaert is hexamine cobalt (III) chloride. Later many such compounds were prepared and their properties were studied. The chloramines complexes of cobalt (III) chromium (III) not only exhibit a spectrum of colours but also differ in the reactivity of their chlorides. Moreover, greater the number of ions produced by a complex in solution, greater is the electrical conductivity. This type of information was obtained for several series of complexes.

Q.

The number of ions per mole of the complex CoCI₃ . 5NH₃ in aqueous solution will be

A
3

B
9

C
2

D
4

Question 18
4 / -1

Matching List Type

Direction (Q. No. 18) Choices for the correct combination of elements from Column I and Column II are given as options (a), (b), (c) and (d), out of which one is correct.

Q.

'Match the Column I with Column II and mark the correct option from the codes given below.

A
a

B
b

C
c

D
d

Question 19
4 / -1

One Integer Value Correct Type

Direction (Q. Nos. 19-23) This section contains 5 questions. When worked out will result in an integer from 0 to 9 (both inclusive).

Q.

Formula of Mohr’s salt is FeSO₄ . (NH₄)₂SO₄ . xH₂O. Here x value is

A
6

B
2

C
5

D
8

Question 20
4 / -1

When AgNO₃ solution is added in excess to 1 M solution of CoCI₃ . xNH₃, one mole of AgCI is formed. The value of x is

A
5

B
7

C
3

D
4

Question 21
4 / -1

The volume (in mL) of 0.1 M AgNO₃ required for complex precipitation of chloride ions present in 30 mL of 0.01 M solution of [Cr(H₂O)₅Cl]Cl₂, as silver chloride is close to

A
3

B
4

C
5

D
6

Question 22
4 / -1

Oxidation state of cobalt in Co(CO)₆ is

A
0

B
7

C
10

D
9

Question 23
4 / -1

In the complex PtCl₄ . 5NH₃ if coordination number of platinum is 6, number of chloride ions precipitated by adding AgNO₃ are

A
3

B
7

C
9

D
18

Question 24
4 / -1

Statement Type

Direction (Q. Nos. 24 and 25) This section is based on Statement I and Statement II. Select the correct answer from the codes given below.

Q.

Statement I : Oxidation state of Fe in Fe(CO)₅ is zero.
Statement II : EAN of Fe in this complex is 36.

A
Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I

B
Both Statement I and Statement II are correct but Statement II is not the correct explanation of Statement I

C
Statement I is correct but Statement II is incorrect

D
Statement II is correct but Statement I is incorrect

Question 25
4 / -1

Statement I : The oxidation num ber of platinum in Zeise’s salt is +4.

Statement II : Zeise’s salt is ionic complex.

A
Both Statement I and Statement II are correct and Statement II is the correct explanation of Statement I

B
Both Statement I and Statement II are correct but Statement II is not the correct explanation of Statement I

C
Statement I is correct but Statement II is incorrect

D
Statement II is correct but Statement I is incorrect

Submit Test

Coordination Co...

Question 1

+ 4 and - 4

+ 4 and 6

+ 6 and 4

+ 2 and 6

Question 2

+ 1 and 3

+ 2 and 4

+ 3 and 4

+ 4 and 6

Question 3

[Pt(NH3)2CI4] and K2[PtCI6]

[Pt(NH3)2] Cl4 and K2[PtCI6]

[Pt(NH3)2CI2]Cl2 and K2[PtCI4]CI2

[Pt(NH3)2CI4] and K2[PtCI5]CI

Question 4

[Co(NH3)6]CI3

[Co(NH3)5]CI2

[Co(NH3)4CI2]CI

[Co(NH3)5H2O]CI3

Question 5

[Co(NH3)4CI2]+ is heteroleptic complex

In [Fe(C2O4)3]3+ and [Co(en)3]3+, the coordination number of both Fe and Co is 6

Ferric alum is a double salt

Mohr’s salt is a double salt and do not give test for Fe2+ ions

Question 6

0

2.84

4.90

5.92

Question 7

five membered

four membered

six membered

three membered

Question 8

+ 1 and + 2

+ 1 and + 1

+ 2 and + 2

+ 2 and + 1

Question 9

Cr(C6H6)2

[Mn(CN)6]4-

[Ni(CO)4]

All of these

Question 10

acetylacetonate (acac)

propylene diamine (pn)

ethylene diamine (en)

bipyridyl (bip

Question 11

hypo

bleaching powder

common alum

carnallite

Question 12

ionic

covalent

metallic

coordinate covalent

Question 13

36

24

34

26

Question 14

[Co(en)2NO2Cl] Br is cationic complex

[Co(en)3]CI3 produces 3 ions in solution

[Fe(CO)5] is neutral complex

[Cu(NH3)4]SO4 is deep blue colour

Question 15

the structure of the compound involves covalent bonding only

the chlorine atoms must be in coordination sphere

the van't Hoff factor of the compound would be unity

on adding excess aqueous AgNO3 to 0.1 L of 0.1 M solution of the compound, 0.02 mole of AgCI would be obtained

Question 16

140 mL

40 mL

80 mL

[Pt(NH₃)₂CI₄] and K₂[PtCI₆]

[Pt(NH₃)₂] Cl₄ and K₂[PtCI₆]

[Pt(NH₃)₂CI₂]Cl₂ and K₂[PtCI₄]CI₂

[Pt(NH₃)₂CI₄] and K₂[PtCI₅]CI

[Co(NH₃)₆]CI₃

[Co(NH₃)₅]CI₂

[Co(NH₃)₄CI₂]CI

[Co(NH₃)₅H₂O]CI₃

[Co(NH₃)₄CI₂]⁺ is heteroleptic complex

In [Fe(C₂O₄)₃]³⁺ and [Co(en)₃]³⁺, the coordination number of both Fe and Co is 6

Mohr’s salt is a double salt and do not give test for Fe²⁺ions

Cr(C₆H₆)₂

[Mn(CN)₆]^4-

[Ni(CO)₄]

[Co(en)₂NO₂Cl] Br is cationic complex

[Co(en)₃]CI₃ produces 3 ions in solution

[Fe(CO)₅] is neutral complex

[Cu(NH₃)₄]SO₄ is deep blue colour

on adding excess aqueous AgNO₃ to 0.1 L of 0.1 M solution of the compound, 0.02 mole of AgCI would be obtained