Coordination Compounds Test

Question 1
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One or More than One Options Correct Type

Direction (Q. Nos. 1 - 5) This section contains 5 multiple choice questions. Each question has four choices (a), (b), (c) and (d), out of which ONE or MORE THAN ONE are correct.

Q.

The formation of complex which involves d-orbitals of outer shell are called

A
low spin complex

B
high spin complex

C
outer orbital complex

D
Option B,C are Correct

Question 2
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sp³ -hybridisation is found in

A
[ZnCI₄ ]^2-

B
[CuCI₄ ]^2-

C
[Ni(CO)₄ ]

D
All are correct

Question 3
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Regarding the complex [Co(H₂ O)₆ ]^2- , correct statement(s) is/are

A
Paramagnetic complex

B
Outer orbital complex

C
Magnetic moment is 3.873 BM

D
All are correct

Question 4
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For which the EAN value is equal to the atomic number of a noble gas?

A
K₂ [HgI₄ ]

B
[Cdl₄ ]^2-

C
Co₂ (CO)₈

D
All are correct

Question 5
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[Fe(H₂ O)₆ ]²⁺ and [Fe(CN)₆ ]^4- differ in

A
magnetic moment

B
colour

C
hybridisation

D
All are correct

Question 6
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Comprehension Type

Direction (Q. Nos. 6 and 7) 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

When crystals of CuSO₄ . 4NH₃ are dissolved in water, there is hardly any evidence for the presence of Cu²⁺ ions or ammonia molecules. A new ion [Cu(NH₃ )₄ ]²⁺ is furnished in which ammonia molecules are directly linked with the metal ion. Similarly, aqueous solution of Fe(CN)₂ .4KCNdoes not give tests of Fe²⁺ and CN^- ions but give test for new ion [Fe(CN)₆ ]^4- called ferrocyanide ion.

Q.

The hybridisation and geometry and magnetic property of [Cu(NH₃ )₄ ]²⁺ ion are

A
sp³ , tetrahedral, diamagnetic

B
sp³ , tetrahedral, paramagnetic

C
dsp² , square planar, diamagnetic

D
dsp² , square planar, paramagnetic

Question 7
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When crystals of CuSO₄ . 4NH₃ are dissolved in water, there is hardly any evidence for the presence of Cu²⁺ ions or ammonia molecules. A new ion [Cu(NH₃ )₄ ]²⁺ is furnished in which ammonia molecules are directly linked with the metal ion. Similarly, aqueous solution of Fe(CN)₂ .4KCNdoes not give tests of Fe²⁺ and CN^- ions but give test for new ion [Fe(CN)₆ ]^4- called ferrocyanide ion.

Q.

The hybridisation, geometry and magnetic property of [Fe(CN)₆ ]^4- are

A
d² sp³ , octahedral, diamagneti

B
d² sp³ , octahedral, paramagnetic

C
sp³ d² , octahedral, diamagnetic

D
sp³ d² , octahedral, paramagnetic

Question 8
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Matching List Type

Direction (Q. Nos. 8 and 9) 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 bleow.

A
a

B
b

C
c

D
d

Question 9
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Match the Column I with Column il and mark the correct option from the codes given bleow.

A
a

B
b

C
c

D
d

Question 10
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One Integer Value Correct Type

Direction : This section contains 5 questions. When worked out will result in an integer from 0 to 9 (both inclusive).

Q.

How many of the following species obey Sidgwick EAN rule?

K₃ [Fe(CN)₆ ], [Ru(CO)₅ ], [Cr(NH₃ )₆ ] ³⁺ , [Co(NH₃ )₆ ]³⁺ , [Ni(NH₃ )₆ ]²⁺ , [Fe(CO)₅ ],[W(CO)₆ ]

A
4

B
3

C
2

D
1

Question 11
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How many of the following are diamagnetic?

[Zn(OH)₄ ]^2- ,[Ni(NH₃ )₆ ]²⁺ , K₄ [Fe(CN)₆ ], K₃ [Fe(CN)₆ ], [Cu(NH₃ )₄ ]²⁺ ,[PdBr₄ ]^2- , [Ni(CO)₄ ], [CoF₆ ] ^3-

A
9

B
4

C
3

D
1

Question 12
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The number of unpaired electrons in the complex [Mn(acac)₃ ] is

(Atomic number of Mn= 25)

A
1

B
2

C
4

D
0

Question 13
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The magnetic moment of [Ru(H₂ O)₆ ]²⁺ corresponds to the presence of ...... unpaired electrons.

A
9

B
8

C
7

D
0

Question 14
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The number of unpaired electrons in [Fe(dipy)₃ ]²⁺ are

A
0

B
3

C
5

D
1

Question 15
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Statement Type

Direction : This section is based on Statement I and Statement II. Select the correct answer from the codes given below.

Q.

Statement I : Both [Ni(CN)₄ ]^2- and [NiCI₄ ]^2- have same shape and same magnetic behaviour.

Statement II : Both are square planar and diamagnetic

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 and Statement I is incorrect

Submit Test

Coordination Co...

Question 1

low spin complex

high spin complex

outer orbital complex

Option B,C are Correct

Question 2

[ZnCI4 ]2-

[CuCI4 ]2-

[Ni(CO)4 ]

All are correct

Question 3

Paramagnetic complex

Outer orbital complex

Magnetic moment is 3.873 BM

All are correct

Question 4

K2 [HgI4 ]

[Cdl4 ]2-

Co2 (CO)8

All are correct

Question 5

magnetic moment

colour

hybridisation

All are correct

Question 6

sp3 , tetrahedral, diamagnetic

sp3 , tetrahedral, paramagnetic

dsp2 , square planar, diamagnetic

dsp2 , square planar, paramagnetic

Question 7

d2 sp3 , octahedral, diamagneti

d2 sp3 , octahedral, paramagnetic

sp3 d2 , octahedral, diamagnetic

sp3 d2 , octahedral, paramagnetic

Question 8

a

b

c

d

Question 9

a

b

c

d

Question 10

4

3

2

1

Question 11

9

4

3

1

Question 12

1

2

4

0

Question 13

9

8

7

0

Question 14

0

3

5

1

Question 15

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

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

Statement I is correct but Statement II is incorrect

Statement II and Statement I is incorrect

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Question Analysis

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[ZnCI₄ ]^2-

[CuCI₄ ]^2-

[Ni(CO)₄ ]

K₂ [HgI₄ ]

[Cdl₄ ]^2-

Co₂ (CO)₈

sp³ , tetrahedral, diamagnetic

sp³ , tetrahedral, paramagnetic

dsp² , square planar, diamagnetic

dsp² , square planar, paramagnetic

d² sp³ , octahedral, diamagneti

d² sp³ , octahedral, paramagnetic

sp³ d² , octahedral, diamagnetic

sp³ d² , octahedral, paramagnetic