Coordination Compounds Test

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Coordination Compounds Test - 38

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following is not $$sp^3$$ hybridise

A
$$BH_3$$

B
$$BH^-_4$$

C
$$NH_4^+$$

D
$$NH_3$$

Solution

$$BH_3 \to Sp^2$$ $$NH_4^+ \to Sp^3$$
$$BH_4^- \to Sp^3$$ $$NH_3 \to Sp^3$$
Question 2
1 / -0

Which of the following has maximum number of unpaired electron (atomic number of $$Fe\ 26$$)

A
$$Fe$$

B
$$Fe (II)$$

C
$$Fe(III)$$

D
$$Fe(IV)$$

Solution
Question 3
1 / -0

The co-ordination number of zinc in zinc blende (Zns) is ___

A
6

B
4

C
8

D
12

Solution

ZnS occurs in two common polytypes, zincblende (also called sphalerite) and wurtzite. The two types have these features in common: a 1:1 stoichiometry of Zn:S. a coordination of 4 for each ion (4:4 coordination)
Question 4
1 / -0

A six coordinate complex of formula $$CrCl_{3} . 6H_{2}O$$ has green colour. A $$0.1\ M$$ solution of the complex when treated with excess of $$AgNO_{3}$$ gave $$28.7\ g$$ of white precipitate. The formula of the complex would be

A
$$[Cr(H_{2}O)_{6})]Cl_{3}$$

B
$$CrCl(H_{2}O)_{5}]Cl_{2}.H_{2}O$$

C
$$[CrCl_{2}(H_{2}O)_{4}]Cl.2H_{2}O$$

D
$$[Cr(H_{2}O)_{3}Cl_{3}]$$

Solution
Question 5
1 / -0

The compound used in the treatment of lead poisoning is :

A
EDTA

B
Cis-platin

C
D-penicillamine

D
desferrioxime B

Solution

(1) EDTA (ethylene diamine tetraacetate) is used for lead poisoning

(2) Cis platin is used as an anti-cancer drug

(3) D-penicillamine is used for copper poisoning

(4) deferrioxime B is used for iron poisoning
Question 6
1 / -0

$$Cr^+3$$ in aquous medium form green coloured complex with $$NH_3$$ ligand. How many ligand associated

A
$$3$$

B
$$4$$

C
$$5$$

D
$$6$$

Solution

[Cr(H2O)6]+3+6NH3S→[Cr(NH3)6]+3=+6H2O
cr+3 show six C.N with NH3
Question 7
1 / -0

The number of water molecule(s) not coordinated to copper ion directly in $$Cu{SO}_{4}.5{H}_{2}O$$ is:

A
$$4$$

B
$$3$$

C
$$1$$

D
$$2$$

Solution

One water molecule as shown in the diagram is not coordinated to copper ion directly.
Question 8
1 / -0

The Hybridisation and magnetic behavior of complex $$[Ni(CO)_{4}]$$ is

A
$$dsp^{2}$$, paramagnetic

B
$$dsp^{2}$$, diamagnetic

C
$$sp^{3}$$, paramagnetic

D
$$sp^{3}$$, diamagnetic
Question 9
1 / -0

Co-ordination number of central metal atom in $$Na_3[Al(C_2O_4)_3]$$ and $$[Co(en)_2Cl]Cl$$ are:

A
$$6$$ and $$6$$

B
$$6$$ and $$5$$

C
$$5$$ and $$5$$

D
$$6$$ and $$4$$

Solution

In $$Na_3[Al(C_2O_4)_3]$$, co-ordination no $$= 3 \times 2 = 6$$
In $$[Co(en)_2]Cl$$, co-ordination no $$= 2 \times 2 + 1 = 5$$
Question 10
1 / -0

Which of the following is diamagnetic complex?

A
$$[Co(OX)_{3}]^{3-}, [Fe(CN)_{6}]^{3-}$$

B
$$[Co(Ox)_{3}]^{3-}, [FeF_{6}]^{3-}$$

C
$$[Fe(Ox)_{3}]^{3-}, [FeF_{6}]^{3-}$$

D
$$[Fe(CN)_{6}]^{3-}, [CoF_{6}]^{3-}$$

Solution

Diamagnetic complex is are
$$[Co(Ox)_{3}]^{3-}$$ and $$[Fe(CN)_{6}]^{3-}$$.

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Re-Attempt Weekly Quiz Competition

Coordination Compounds Test - 38

Result

Coordination Compounds Test - 38

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Question 1

$$BH_3$$

$$BH^-_4$$

$$NH_4^+$$

$$NH_3$$

Solution

Question 2

$$Fe$$

$$Fe (II)$$

$$Fe(III)$$

$$Fe(IV)$$

Solution

Question 3

6

4

8

12

Solution

Question 4

$$[Cr(H_{2}O)_{6})]Cl_{3}$$

$$CrCl(H_{2}O)_{5}]Cl_{2}.H_{2}O$$

$$[CrCl_{2}(H_{2}O)_{4}]Cl.2H_{2}O$$

$$[Cr(H_{2}O)_{3}Cl_{3}]$$

Solution

Question 5

EDTA

Cis-platin

D-penicillamine

desferrioxime B

Solution

Question 6

$$3$$

$$4$$

$$5$$

$$6$$

Solution

Question 7

$$4$$

$$3$$

$$1$$

$$2$$

Solution

Question 8

$$dsp^{2}$$, paramagnetic

$$dsp^{2}$$, diamagnetic

$$sp^{3}$$, paramagnetic

$$sp^{3}$$, diamagnetic

Question 9

$$6$$ and $$6$$

$$6$$ and $$5$$

$$5$$ and $$5$$

$$6$$ and $$4$$

Solution

Question 10

$$[Co(OX)_{3}]^{3-}, [Fe(CN)_{6}]^{3-}$$

$$[Co(Ox)_{3}]^{3-}, [FeF_{6}]^{3-}$$

$$[Fe(Ox)_{3}]^{3-}, [FeF_{6}]^{3-}$$

$$[Fe(CN)_{6}]^{3-}, [CoF_{6}]^{3-}$$

Solution

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