12th Chemistry - Book Back & Creative One Mark Questions - Free Online Test - English Medium - Unit - 5 : Co

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Choose the correct statement

All the above
C
A
B

potassiumtrioxalatoaluminate(II)
potassiumtrioxalatoaluminate(III)
potassiumtrisoxalatoaluminate(III)
potassiumtrioxalatoaluminium(III)

In which of the following coordination entities the magnitude of Δ0 will be maximum?

A magnetic moment of 1.73BM will be shown by one among the following

Paramagnetism is the property of

paired electrons
completely vacant electronic sub-shells
completely filled electronic sub-shells
unpaired electrons

The spin only magnetic moment of [MnBr4]2- is 5.9M .Geometry of the complex ion is

Tetra hedral
Pentagonal pyramidal
OctaHedral
Square planar

chlorobisethylenediaminenitritocobalt(III) chloride
chloridobis(ethane-1,2-diamine)nitro -Ocobalt(III) chloride
chloridobis(ethane-1,2-diammine)nitrito -Ocobalt(II) chloride
chloridobis(ethane-1,2-diamine)nitro -Ocobaltate(III) chloride

Which one of the following will give a pair of enantiomorphs?

An aqueous solution of (PdCi)2 4NH3 when treated with excess of AgNo3 precipitated 2 moles of AgCl.Predict the secondary valency of the compound

+3 and -1 respectively
+1 and +1 respectively
+2 and 0 respectively
+3 and 0 respectively

An excess of silver nitrate is added to 100ml of a 0.01M solution of penta aqua chloridochromium(III)chloride. The number of moles of AgCl precipitatedwould be

0.01
0.2
0.02
0.002

An example of ambidentate ligand is __________

triphenyl phoshine
nitro
chloro
cyano

Which of the following is paramagnetic in nature?

Formula of tris(ethane-1,2 diamine)iron(II) phosphate

The ligand capable of coordinating in two or more ways with the central metal ion are called________ ligands.

none of the above
tridentate
didentate
ambidendate

A 'd' block metal ion has a magnetic moment of BM. The number of unpaired electrons are

Which kind of isomerism is possible for a complex [Co(NH3)4Br2]Cl?

geometrical only
optical and ionization
geometrical and ionization
geometrical and optical

The total number f electrons denoted by ligands to platinum ion in [pt(en)2 Cl 2] is

Which one of the following pairs represents linkage isomers?

C
A
B
both (b) and (c)

Paramagnetic moment is expressed in

ergs
BM
K joules
Debye unit

According to IUPAC, No is

nitrito
nitro
nitrato
nitrosyl

Fac-mer isomerism is shown by

Which of the following is not true about secondary valency?

both (a) and(b)
They are non directional in nature
It corresponds to the co=ordination number of metal
It is satisfied by negative ions or neutron molecule

Naming the ligand in [M(en)2]n+ starts with

Di
Bis
Bi
any of these

A complex in which the oxidation number of the metal is zero is

Crystal field stabilization energy for high spin d5 octahedral complex is

An excess of silver nitrate is added to 100ml of a 0.01M solution of penta aqua chlorido chromium(III)chloride. The number of moles of AgCl precipitated would be

0.002
0.01
0.2
0.02

Which of the following is wrong about double salts ?

they dont associate in to its constituent ions
retain their properties only in solid state
none of the above
contains two or more salt in stoichiometric proportions

How many geometrical Isomeres are possible for [Pt(Py)(NH3)(Br)(CI)]?

According to CFT ,five d orbitals of an octa hedral complexes split to give

Two Orbitals with lower energy and three orbitals with higher energy
Three Orbital with lower energy and two orbitals with higher energy
One Orbital with lower energy and four orbitals with higher energy
Four Orbital with lower energy and one orbitals with higher energy

Which one of the following complexes is not expected to exhibit isomerism?

6
9
3
-3

Optical isomerism
Linkage isomerism
Coordination isomerism
Geometrical isomerism

Ligand which is used to treat hard water

NH3
EDTA
en
Ox