Coordination Compounds Test

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Coordination Compounds Test - 72

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Weekly Quiz Competition

Question 1
1 / -0

Which reagent can be used to identity nickel ion?

A
Resorcinol

B
Dimethyl glyoxime $$[DMG]$$

C
Diphenyl benzidine

D
Potassium ferrocyanide

Solution

$$Ni$$ reacts with dimethylglyoxime to give red precipitate of nickel dimethyl glyoxime complex.
Question 2
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Which of the following reacts with haemoglobin in the blood to form carboxyhaemoglobin

A
$$CO$$

B
$$CO_2$$

C
$$HCOOH$$

D
$$H_2CO_3$$

Solution

$$\text{Carboxyhemoglobin or carboxyhaemoglobin is a stable complex of carbon monoxide and hemoglobin}$$ that forms in red blood cells upon contact with carbon monoxide. Carboxyhemoglobin is often mistaken for the compound formed by the combination of carbon dioxide and hemoglobin, which is actually carbaminohemoglobin.
Question 3
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Which is the example of branch isomerization

A
$$C-\overset{C}{\overset{|}{C}}-C-C-C$$ and $$C-\overset{C}{\overset{|}{\underset{C}{\underset{|}{C}}}}-C$$

B
$$C-\underset{C}{\underset{|}{C}}-\overset{C}{\overset{|\\}{C}}$$ and $$\overset{C}{\overset{|}{C}}-\underset{C}{\underset{|}{C}}-C$$

C

D
$$C-C-C-C$$ and $$C-C-\underset{C}{\underset{|}{C}}$$
Question 4
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The formula of dichlorobis(urea)copper(II) is:

A

$$[CuCl_2({O=C(NH_2)_2})_2]$$

B

$$[Cu(O=C(NH_2)_2)Cl]Cl$$

C

$$[Cu({O=C(NH_2))_2}]Cl2$$

D

$$[CuCl_2({O=C(NH_2))_2H_2}]$$
Question 5
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In which of the following species maximum atom can lie in same plane?

A
$$XeF_{2}O_{2}$$

B
$$PCl_{5}$$

C
$$AsH_{4}^{+}$$

D
$$XeF_{4}$$

Solution
Question 6
1 / -0

Select the correct statement :

A
$${HSO_5}^-$$ ion has one $$S-O-H$$ linkage

B
Number of $$B-O-B$$ linkages in borax is equal to number of $$P-O-P$$ linkages in $$P_4O_{10}$$

C
Hybridization of both sulphur in $$H_2S_2O_5$$ (pyrosulphurous acid) is same but oxidation state of both sulphur are different

D
Tetra-polyphosphoric acid has four $$P-O-P$$ and no $$P-P$$ linkage

Solution
Question 7
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Which of the following is incorrectly matched?

A
$$[FeF_{6}]^{3-}, 5$$

B
$$[Cr(en)_{3}]^{2+}, 2$$

C
$$[Co(NH_{3})_{6}]^{3+}, 4$$

D
$$[Mn(H_{2}O)_{6}]^{2+}, 5$$

Solution
Question 8
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Select the incorrect match:

A

B

C

D

Solution

In see-saw structure, as lone pair lies in equatorial position, hence there is more reduction in equatorial bonds than in axial bonds.
Question 9
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Directions For Questions

According to the VSEPR model, molecules adopt geometries in which their valence electron pairs position themselves as far from each other as possible. The VSEPR model considers double and triple bonds to have slightly greater repulsive effects than single bonds because of the repulsive effect of $$\pi$$ electrons. However, the lone pair creates the maximum repulsive effect.

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Which of the following does not represent the isostructural pair?

A
$$SF_{5}^{-}$$ and $$IF_{5}$$

B
$$ClO_{2}F_{3}$$ and $$SOF_{4}$$

C
$$SeF_{3}^{+}$$ and $$XeO_{3}$$

D
None

Solution
Question 10
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Directions For Questions

A complex compound of chromium contains five $$NH_{3}$$ molecules, one nitro group and two chloride ions for one $$Cr^{3+}$$ cation. One molecule of this compound produces three ions in aq. solution, on reacting with excess of $$AgNO_{3}$$ solution, two moles of $$AgCl$$ get precipitated.

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The types of isomerism shown by the complex compound is

A
Geometrical, ionization

B
Ionization, linkage

C
Linkage, optical

D
Geometrical, optical

Solution