Coordination Compounds Test

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Coordination Compounds Test - 1

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following complex shows Geometrical isomerism?

A
[PtCl₄I₂]

B
[Ag(NH₃)(CN)]

C
[Pt(NH₃)₃Cl][Au(CN)₄]

D
Na₂[Cd(NO₂)₄]

Solution

[PtCl₄I₂] shows geometrical isomerism.
Question 2
1 / -0

How many isomers are possible for the complex ion. [Cr(NH₃)(OH)₂Cl₃]^2–

A
2

B
5

C
3

D
4

Solution

Three: (1) all cis,(2) Cl, OH trans (3) Cl trans, OH cis
Question 3
1 / -0

The aqueous 0.01m of [Co(NH_3/6]₂[Co(NH₃)(NO₂)₅]₃ is expected to have the depression of freezing point (K_ffor water –1.86 K/m)

A
0.074°C

B
0.093°C

C
0.056°C

D
0.018°C

Solution

The compound dissociates into 5 ions as:

[Co(NH₃)₆]₂ [Co(NH₃)(NO₂)₅]^2-

The effective molality

= 0.01 × 5 = 0.05; ΔT_f = 1.86 × 0.05 = 0.093°C
Question 4
1 / -0

Find the number of geometric isomers of the complexCr(NH₃)₃Cl₃

A
3

B
4

C
0

D
2

Solution

Two isomers, cis and trans; in cis-ismer all NH₃ group occupy one face of the octahedron and hence Cl atoms occupy another (opposite face).
Question 5
1 / -0

Which of the following is a high spin complex ion?

A
[Co(NH₃)₆]²⁺

B
[Fe(CN)₆]^3–

C
[Co(NH₃)₆]³⁺

D
[Fe(CN)₆]^2–

Solution

Co (II) – 3d⁷: Two vacant 3d orbitals cannot be made available by pairing up electrons.
Question 6
1 / -0

The most acidic aqua ion is

A
[Ti(H₂O)₆]³⁺

B
[Ni(H₂O)₆]³⁺

C
[Co(H₂O)₆]³⁺

D
[Fe(H₂O)₆]³⁺

Solution

[Ti(H₂O)₆]³⁺ is the most acidic of those.

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Re-Attempt Weekly Quiz Competition

Coordination Compounds Test - 1

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Coordination Compounds Test - 1

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Question 1

[PtCl4I2]

[Ag(NH3)(CN)]

[Pt(NH3)3Cl][Au(CN)4]

Na2[Cd(NO2)4]

Solution

Question 2

2

5

3

4

Solution

Question 3

0.074°C

0.093°C

0.056°C

0.018°C

Solution

Question 4

3

4

0

2

Solution

Question 5

[Co(NH3)6]2+

[Fe(CN)6]3–

[Co(NH3)6]3+

[Fe(CN)6]2–

Solution

Question 6

[Ti(H2O)6]3+

[Ni(H2O)6]3+

[Co(H2O)6]3+

[Fe(H2O)6]3+

Solution

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[PtCl₄I₂]

[Ag(NH₃)(CN)]

[Pt(NH₃)₃Cl][Au(CN)₄]

Na₂[Cd(NO₂)₄]

[Co(NH₃)₆]²⁺

[Fe(CN)₆]^3–

[Co(NH₃)₆]³⁺

[Fe(CN)₆]^2–

[Ti(H₂O)₆]³⁺

[Ni(H₂O)₆]³⁺

[Co(H₂O)₆]³⁺

[Fe(H₂O)₆]³⁺