NEET chemistry coordinate compounds questions,answers,solutions,pdfs

Coordinate Compound Mock Exam-12

Question No:1

Among TiF62-, CoF63- , Cu2Cl2and NiCl42- the coloureless species are:

[A] CoF63- and NiCl42-
[B] TiF62- and CoF63-
[C] NiCl42- and Cu2Cl2
[D] TiF62- and Cu2Cl2

Question No:2

IUPAC name of complex K3[Al(C2O4)3] is :

[A] Potassium alumino-oxalate
[B] Potassium trioxalatoaluminate(III)
[C] Potassium aluminium(III) oxalate
[D] Potassium trioxalatoaluminate(IV)

Question No:3

Which ion has tetrahedral geometry:

[A] [Fe(CO) 5]
[B] [Co(NH3 ) 6]2+
[C] [NiCl4 ] 2–
[D] [Ni(CN) 4]2–

Question No:4

Trioxalato aluminate(III) and tetrafluoro-borate(III) ions are:

[A] [Al(C2 O4 ) 3] , [BF4 ] 3–
[B] [Al(C2 O4)3]3+, [BF4 ] 3+
[C] [Al(C2 O4 ) 3]3– , [BF4 ]
[D] [Al(C2 O4 ) 3 ] 2–, [BF4 ] 2–

Question No:5

Which of the ligands can show linkage isomerism:

[B] NO2
[C] CN
[D] All of these

Question No:6

Consider the following statements:
According the Werner’s theory.
Ligands are connected to the metal ions by covalent bonds.
Secondary valencies have directional properties
Secondary valencies are non-ionisable
Of these statements:

[A] 1, 2 and 3 are correct
[B] 2 and 3 are correct
[C] 1 and 3 are correct
[D] 1 and 2 are correct

Question No:7

From the stability constant(hypothetical values), given below, predict which is the strongest ligand:

[A] Cu2+ + 4NH3 l [Cu(NH3) 4] 2+, K=4.5 × 1011
[B] Cu2+ 4CNl [Cu(CN) 4]2–,K=2.0 × 1027
[C] Cu2+ + 2en l [Cu(en) 2] 2+,K=3.0 × 1015
[D] Cu2+ + 4H 2O l [Cu(H2O) 4] 2+,K=9.5 × 108

Question No:8

In which of the following complexes the nickel metal is in highest oxidation state:

[A] Ni(CO)4
[B] K2NiF6
[C] [Ni(NH3)6](BF4)2
[D] K4 [Ni(CN)6]

Question No:9

An ion M2+, forms the complexes [M(H2O)6]2+, [M(en)3]2+ and [MBr6]4–, match the complex with the appropriate colour.

[A] Green, blue and red
[B] Blue, red and green
[C] Green, red and blue
[D] Red, blue and green

Question No:10

Name the metal M which is extracted on the basis of following reactions: 4M + 8CN + 2H2O + O2à4[M(CN) 2] + 4OH–2 [M(CN) 2]+ Znà[Zn(CN) 4]2– + 2M

[A] Nickel
[B] Silver
[C] Copper
[D] Mercury

Question No:11

[(C6H5)2 Pd(SCN) 2] and [(C6H5)2 Pd(NCS) 2] are:

[A] Linkage isomers
[B] Co-ordination isomers
[C] Ionisation isomers
[D] Geometrical isomers

Question No:12

Which one of the following square planar complex will be able to show cis-trans isomerism:

[A] MA3B
[B] M(AA) 2
[D] MA4

Question No:13

A complex of platinum, ammonia and chloride produces four ions per molecule in the solution. The structure consistent with the observation is:

[A] [Pt(NH3)4]Cl4
[B] [Pt(NH3)2Cl4]
[C] [Pt(NH3)5Cl]Cl3
[D] [Pt(NH3)4Cl2]Cl2

Question No:14

The total number of possible isomers of the compound [CuII (NH3)4] [PtIICl4] are:

[A] 3
[B] 5
[C] 4
[D] 6

Question No:15

In the complex Fe(CO) x, the value of x is:

[A] 3
[B] 4
[C] 5
[D] 6