ECAT Pre Engineering Chemistry Chapter 17 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 17 Transition Elements

Try The MCQ's Test For ECAT Chemistry Chapter 17 Transition Elements

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ECAT Chemistry Chapter 17 Transition Elements

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Question # 1

The amount of Ni in stainless steel is

Question # 2

Which is the correct electronic configuration of Cr - 24

Question # 3

In the manufacture of iron from haematitie,limestone is added to act as

Question # 4

In an ooctahedral crystal field splitting, the number of orbitals pushed down in energy is

Question # 5

Series starting from57La,42Hf -80Hg is in the period:

Question # 6

Group VIB of transition elements contains

Question # 7

Maximum variable oxidation state is of:

Question # 8

Which of the following metals is sometimes found in native state in nature?

Question # 9

A transition metal complex can be recognized by various terms. Which is not the proper term

Question # 10

Coordination sphere may be:

Question # 11

The total number of rare earth elements is

Question # 12

Mercury is the only metal which is liquid at 0°C. this is due to its

Question # 13

Which of the following d-block elements can show the highest oxidation number in its compounds

Question # 14

d-block elements closely resemble in their physical and chemical properties. Which statement is incorrect

Question # 15

What are alloys

Question # 16

Coordination number of Pt in [Pt Cl(NO2) (NH3)]2-is

Question # 17

The colour of a transition metal complex is due to d-d transition The colour of the complex is the complementary of the colour absorbed. Thus [Ti(H2O6]3+abosrbs yellow light and transmits blue and red colours therefore the solution of titanium complex appears

Question # 18

Potassium ferrocyanide is a

Question # 19

Cuprous ore among the following is

Question # 20

The free spaces between the metal atoms and its crystal lattice are called

Question # 21

Bronze is an alloy of Cu and

Question # 22

[Zn(NH3)4]3+possess geometry

Question # 23

Bronze is an alloy which contains

Question # 24

The elements in which d or f-orbitals are incomplete are called

Question # 25

Transition metals form complexes due to the participation of partially filled

Question # 26

Which metal is used for catalytic hydrogenation of oils

Question # 27

The colour of transition metal complexes is due to:

Question # 28

Which of the following metal exhibits more than one oxidation?

Question # 29

Which of the following is a not typical transition element

Question # 30

Choose the correct answer of transition elements?

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 During oxidation in k2Cr2O7, Cr VI changes to :
A. I
B. II
C. III
D. IV
2 The protection of steel by chrome plating is due to
A. Cathodic protection
B. Anodic protection
C. Covering of steel surface
D. Formation of alloy with iron
3 [Cu[NH3)4]+2will form ______ structure
A. Square planar
B. Tetrahedral
C. Octahedral
D. Trigonal bipyramidal
4 Most common oxidation states shownby cerium are
A. +2, +4
B. +3, +4
C. +3, +5
D. +2, +3
5 Bronze is an alloy of Cu and
A. Zn
B. As
C. Sb
D. Sn
6 Transition metals form complexes due to the participation of partially filled
A. f-orbitals
B. d-orbitals
C. s-orbitals
D. p-orbitals
7 Non-formation of menisus by Hg in presence of O3is due to the formation of
A. Mercuric oxide
B. Mercurous oxide
C. Mercuric chloride
D. Mercurous chloride
8 CuSO4. 5H2O is used to prepare
A. Transition complex
B. Fehling's 'A' sol
C. Fehling's 'B' sol
D. Fehling's sol
9 The colour of transition metal complexes is due to:
A. d-d transitions of electorns
B. Paramagnetic nature of transition
C. Ionization
D. Loss of s-electrons
10 Iron, once dipped in concentrated H2SO4, does not displace copper from copper sulphates solution, because
A. It less reactive than copper
B. A layer of sulphates is deposited on it
C. An inert layer of iron oxide is deposited on it
D. All valence electrons of iron are consumed

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