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Online Tests
ECAT Chemistry Chapter 17 Transition Elements Online Test MCQs With Answers
Question # 1
The geometrical shape of a transition complexion is related to the state of hybridizing of the central atom. What is trigonal bipyramidal
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sp
3
dsp
2
dsp
3
d
2
sp
3
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Question # 2
The amount of Ni in stainless steel is
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3%
4%
5%
8%
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Question # 3
Rusting of iron is catalysed by
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Fe
O
2
Zn
H
+
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Question # 4
Which of the following is a transition element
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Sr
Sn
Cr
Pb
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Question # 5
Which of the following d-block elements can show the highest oxidation number in its compounds
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Chromium
Copper
Nickel
Manganese
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Question # 6
The total number of d-bock transition element is
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10
14
40
30
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Question # 7
f-block elements are called :
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Alkali metal
Alkakline earth metals
Transition elements
Electron deficient elements
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Question # 8
Which element belong to 5d series
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V
Nb
Pd
Hf
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Question # 9
Which of the following has the maximum number of unpaired d-electrons?
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Zn
Fe
2+
Ni
3+
Cu
+
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Question # 10
Which has the largest radius?
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CO
3+
Mn
3+
Fe
3+
Cr
3+
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Question # 11
Which of the following is a typical transition metal
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Sc
Y
Ra
Co
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Question # 12
The percentage of carbon in different types of iron products is in the order of:
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Cast iron > wrought iron > steel
wrought iron > steel > cast rion
Cast iron > steel > wrought iron
Cast iron = steel > wrought iron
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Question # 13
Misch mental is
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An alloy of Aluminium
A mixture of chromium and lead chromate
An alloy of lanthanoid metals
An alloy of copper
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Question # 14
Which one of the following metal ions is colourless?
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V
2+
Cr
3+
Zn
2+
Ti
3+
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Question # 15
Maximum variable oxidation state is of:
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Mn
+2
Fe
+3
Cr
+1
a and b
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Question # 16
The compound which gives oxygen on moderate heating is
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Zinc oxide
Mercuric oxide
Aluminium oxide
Ferric oxide
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Question # 17
Most transition elements show
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Diamagnetic behavior
Ferromagnetic behavior
Paramagnetic behavior
None of these
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Question # 18
The colour of transition metal complexes is due to
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d-d transitions of electrons
Para magnetic nature of transition elements
Ionization
Loss of s-electrons
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Question # 19
AgCl is soluble is
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Aqua regia
H
2
SO
4
HCl
NH
3
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Question # 20
What is wrong about transition metals?
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Diamagnetic
Paramagnetic
Form complexes
Shows variable oxidation state
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Question # 21
Steel may be manufacture by two processes which two are correct
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Open hearth process and besemer process
Open hearth process and Haber process
Bassemer process and Haber process
Contact process and Haber process
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Question # 22
Stainless steel contains Cr upto
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12%
18%
10%
5%
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Question # 23
6-d series is in the period :
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4th
5th
6th
7th
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Question # 24
Coordination number of Pt in [Pt Cl(NO
2
) (NH
3
)]
2-
is
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2-
4
1
6
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Question # 25
In an ooctahedral crystal field splitting, the number of orbitals pushed down in energy is
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3
2
5
Zero
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Question # 26
Bell metal is an alloy of
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Cu, Zn, and Sn
Cu, Zn and Ni
Cu and Zn
Cu and Sn
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Question # 27
Which of the following is not an element?
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Graphite
Diamond
22-Carat gold
Rhombic sulphur
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Question # 28
The percentage of carbon in different types of iron products is in the order of
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Cast iron > wrought iron > steel
Wrought iron > steel > cast iron
Cast iron > steel > wrought iron
Cast iron = steel > wrought iron
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Question # 29
In the extraction of iron, slag is produced which is
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CO
FeSiO
3
MgSiO
3
CaSiO
3
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Question # 30
A transition element is defined as an element of 3d series
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Which is metal
Which has one stable ion
Which has two stable ions
Which has at least one stable ion with incomplete d-orbital
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Question # 31
Most common oxidation states shownby cerium are
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+2, +4
+3, +4
+3, +5
+2, +3
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