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Coordination Chemistry - GATE Chemistry MCQ


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20 Questions MCQ Test GATE Chemistry Mock Test Series - Coordination Chemistry

Coordination Chemistry for GATE Chemistry 2024 is part of GATE Chemistry Mock Test Series preparation. The Coordination Chemistry questions and answers have been prepared according to the GATE Chemistry exam syllabus.The Coordination Chemistry MCQs are made for GATE Chemistry 2024 Exam. Find important definitions, questions, notes, meanings, examples, exercises, MCQs and online tests for Coordination Chemistry below.
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Coordination Chemistry - Question 1

A complex of Ni(ll), [NiCl2(PPh3)2] is paramagnetic, the analogous complex of Palladium (II) is diamagnetic, the number of isomers shown by both complexes respectively are

Detailed Solution for Coordination Chemistry - Question 1


Coordination Chemistry - Question 2

The spin-only magnetic moment and the spectroscopic ground state term symbol of iron centre in FeO69- ion respectively are

Detailed Solution for Coordination Chemistry - Question 2

Coordination Chemistry - Question 3

Among the following metal complexes in order of their increasing hydration energy. 



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Hydration energy is released when gaseous metal cations get hydrated.

Coordination Chemistry - Question 4

The true statement about base hydrolysis of [Co(CN)5JsBr]3- is

Detailed Solution for Coordination Chemistry - Question 4

The base hydrolysis of Co(lll) complexes with ligand without replaceable proton like [Co(CN)5Br]3- was found to be very low and independent of the concentration of nucleophile. Since the non-leaving ligand do not contain replaceable proton, the SN1CB mechanism is not possible.

Coordination Chemistry - Question 5

In square planar complexes which of the d -orbital / orbitals get direct interaction with ligand orbitals

Detailed Solution for Coordination Chemistry - Question 5

In square planar complexes, dx-yorbital get direct interaction with ligand orbital.

Coordination Chemistry - Question 6

The Δ0 value of [Co(NH3)6]3+ is 22,870 cm -1. The Δ0 value of [CoCH2O6]3+ and [C oF6]3- - compared to [Co(NH3)6]3+ respectively are

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*Answer can only contain numeric values
Coordination Chemistry - Question 7

The total number of micro states for 3F, 3P and 1D is____________


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Coordination Chemistry - Question 8

The oxidation state of Ru metal ion in [Ru(Terpy)2)J (PF6)2 is__________


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Terpyndine (neutral ligand)
or
Terpy

*Answer can only contain numeric values
Coordination Chemistry - Question 9

Potassium ferrocyanide reacts with nitric acid to form product A. Which further reacts with sodium carbonate to form product B. The total number of elections in t2g orbitals of metalion present in product B is


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Coordination Chemistry - Question 10

Among the following ligands, the number of ligands that can not act as ambidentate ligands is_________


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The monodentate ligands which have two or more different donor atoms can coordinate to a metal cation through either of the two different donor sites. These ligands are called ambidentate ligands.

Coordination Chemistry - Question 11

Among the following complexes, the correct trend of Pt-N bond strength is

 

Detailed Solution for Coordination Chemistry - Question 11

The trans-Pt-N bond is weakened as T becomes a better labilizer of the trans-ammonia and stabilization of the transition state must also be an important contribution to the trans-effect. The strength of P t- N bond in trans-[PtCl2(NH3)T] decreases as T is changed in the order

Coordination Chemistry - Question 12

The correct trend of rate of electron transfer reaction between the complexes [CoC NH3),5X]2+/ [Co(H2O)6]2+ with variation of X is

Detailed Solution for Coordination Chemistry - Question 12

The electron transfer between complexes [Co(NH3,)5X]2+ / [Co(H2O6 )2+ is a type o f inner sphere mechanism.
The typical bridging ligands involved in such reaction are capable of conveying the electron and contain more than one lone pair of electrons.

Coordination Chemistry - Question 13

The spmel structure of Cr2FeO4 has cubic close packed arrangement of oxide ions. The fractions of the tetrahedral and octahedral sites occupied by cation respectively are

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Coordination Chemistry - Question 14

The blue colour of [CoCl4]2- is due to the transition of

Detailed Solution for Coordination Chemistry - Question 14

In tetrahedral [CoCI4]2-  ion the visible region transition is
which is responsible for blue colour.

Coordination Chemistry - Question 15

Which of the following octahedral complex exhibits tetragonal compression 

Detailed Solution for Coordination Chemistry - Question 15

In the crystalline of KCuF3, the two Cu-F distance on z-axis are 1.96Å and the remaining four Cu-F distance in xy-plane are at 2.07Å. It is due to Jahn-Teller compression.

Coordination Chemistry - Question 16

The colour and tlie mason for the deep coloration of [Fe(NCS)6]3- and [Fe(bpy)3]2+ respectively are 

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*Answer can only contain numeric values
Coordination Chemistry - Question 17

The total number of isomers possible for the molecule [Co(en)2Cl(NO2)]+ is___________


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Total number of isomer is six

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Coordination Chemistry - Question 18

The total sum of x value of the following complexes is __________________


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Coordination Chemistry - Question 19

A complex [Co(h2O)6]2+ has an absorption maxima at 510 nm. The crystal field stabilisation energy for [CoC14]2- (in KJ mol-1) is _______________(Ignoring stabilisation charge)


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*Answer can only contain numeric values
Coordination Chemistry - Question 20

In [Ni(PNP)X]2 [NiX4] complex, the total coordination number of metal ion is______________
(X is a uninegative monodentate ligand)


Detailed Solution for Coordination Chemistry - Question 20

The compound [Ni(PNP)X]2 [NiX4] where PNP (tridentate) =
(C6H5)2PCH2CH2NRCH2CH2P(C6H5)2 the total coordination number of metal ion is 12.

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