Coordination Compounds Test

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Coordination Compounds Test - 42

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Weekly Quiz Competition

Question 1
1 / -0

$$[Co(NH_3)_4Cl_2]^+$$ exhibits

A
Geometrical isomerism

B
Optical isomerism

C
Bonding isomerism

D
Ionisation isomerism

Solution

$$[Co(NH_3)_4Cl_2]^+$$ is $$Ma_4b_2$$ type complex which show geometrical isomerism.
Question 2
1 / -0

Ferrous Oxide is

A
$$FeO$$

B
$$Fe_2O_3$$

C
$$Fe_3O_4$$

D
None of these.

Solution

Ferrous Oxide is $$FeO$$.
Hence, Option "A" is the correct answer.
Question 3
1 / -0

Correct formula of Potassium Ferricyanide is

A
$$ K_4Fe(CN)_6 $$

B
$$ K_3[Fe(CN)_6] $$

C
$$ K_3[Fe(CN)_3] $$

D
$$ K_3[Fe(CN)_4] $$

Solution

Potassium Ferricyanide is $$ K_3[Fe(CN)_6] $$.
Hence, Option "B" is the correct answer.
Question 4
1 / -0

The complex compounds which result from the coordination of carbon monoxides are known as

A
electronic

B
carbonyls

C
carbonates

D
carbon permono

Solution

The complex compounds which result from the coordination of carbon monoxides are known as carbonyl compound.

Example: $$Fe(CO)_5, Ni(CO)_4, $$ etc.
Question 5
1 / -0

Mohr's salt is

A
$$ FeSO_4. 7H_2O $$

B
$$ Fe(NH_4)SO_4 . 6H_2 O $$

C
$$ (NH_4)_2 SO_4 . FeSO_4 . 6H_2 O $$

D
$$ [Fe(NH_4)_2] (SO_4)_2. 6H_2 O $$

Solution

Mohr's salt is $$ (NH_4)_2 SO_4 . FeSO_4 . 6H_2 O $$.
Hence, Option "C" is the correct answer.
Question 6
1 / -0

Formula of ferric sulphate is

A
$$ FeSO_4 $$

B
$$ Fe(SO_4)_2 $$

C
$$ Fe_2SO_4 $$

D
$$ Fe_2(SO_4)_3 $$

Solution

Ferric Sulphate is Iron (III) Sulphate i.e $$ Fe_2(SO_4)_3 $$.
Hence, Option "D" is the correct answer.
Question 7
1 / -0

$$[Co(NH_3)_4Cl_2]NO_2$$ and $$[Co(NH_3)_4Cl.NO_2]Cl$$ are ___________ isomers.

A
Geometrical

B
Optical

C
Linkage

D
Ionization

Solution

Both produce different ions in solution state so they are ionisation isomer.

$$[Co(NH_3)_4Cl_2]NO_2 \rightleftharpoons [Co(NH_3)_4Cl_2]^+ +NO_2^-$$

$$[Co(NH_3)_4Cl. NO_2]Cl \rightleftharpoons [Co(NH_3)_4Cl. NO_2]^+ +Cl^-$$
Question 8
1 / -0

The primary valence of the metal ion in the co-ordination compound $$K_2[Ni(CN)_4]$$ is

A
four

B
zero

C
two

D
six

Solution

Primary valencies are also known as the oxidation state of the central metal atom.

$$K_2[Ni(CN)_4]$$. Let $$x$$ be the oxidation state of Ni.

Now,

$$2\times1+x+4\times(-1)=0;\quad \Rightarrow x=+2$$
Question 9
1 / -0

The number of neutral molecules or negative groups attached to the central metal atom in a complex ion is called

A
atomic number

B
effective atomic number

C
coordination number

D
primary valency

Solution

The number of neutral molecules or negative groups attached to the central metal atom in a complex ion is called coordination number.

Example: In $$[Ni(CO)_4],$$ coordination number is 4.
Question 10
1 / -0

In $$K_4 Fe(CN)_6$$

A
$$(CN)$$ are linked with primary valency

B
$$(CN)$$ are linked with secondary valency

C
$$K$$ are linked with secondary valency

D
$$K$$ are linked with non-ionic valency

Solution

$$(CN)$$ are linked with secondary valency to the central Fe metal ion. Ligand (CN) is linked to the central atom via a dative bond.

$$K_4[Fe(CN)_6]\to 4K^++[Fe(CN)_6]^{4-}$$

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Re-Attempt Weekly Quiz Competition

Coordination Compounds Test - 42

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Coordination Compounds Test - 42

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SHARING IS CARING

Question 1

Geometrical isomerism

Optical isomerism

Bonding isomerism

Ionisation isomerism

Solution

Question 2

$$FeO$$

$$Fe_2O_3$$

$$Fe_3O_4$$

None of these.

Solution

Question 3

$$ K_4Fe(CN)_6 $$

$$ K_3[Fe(CN)_6] $$

$$ K_3[Fe(CN)_3] $$

$$ K_3[Fe(CN)_4] $$

Solution

Question 4

electronic

carbonyls

carbonates

carbon permono

Solution

Question 5

$$ FeSO_4. 7H_2O $$

$$ Fe(NH_4)SO_4 . 6H_2 O $$

$$ (NH_4)_2 SO_4 . FeSO_4 . 6H_2 O $$

$$ [Fe(NH_4)_2] (SO_4)_2. 6H_2 O $$

Solution

Question 6

$$ FeSO_4 $$

$$ Fe(SO_4)_2 $$

$$ Fe_2SO_4 $$

$$ Fe_2(SO_4)_3 $$

Solution

Question 7

Geometrical

Optical

Linkage

Ionization

Solution

Question 8

four

zero

two

six

Solution

Question 9

atomic number

effective atomic number

coordination number

primary valency

Solution

Question 10

$$(CN)$$ are linked with primary valency

$$(CN)$$ are linked with secondary valency

$$K$$ are linked with secondary valency

$$K$$ are linked with non-ionic valency

Solution

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