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

Which element has 4 unpaired electrons in 3d-orbital

Question # 2

The lanthanides contraction is responsible for the fact that

Question # 3

Most transition elements show

Question # 4

The protection of steel by chrome plating is due to

Question # 5

Which period starts from 11Sc to 30Zn ?

Question # 6

The total number of d-bock transition element is

Question # 7

Which is the formula of tetra-ammine chloronitro platinum (VI) sulphate?

Question # 8

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

Question # 9

All 3d series elements show variable oxidation states. The one shown by all 3d elements is

Question # 10

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

Question # 11

[Co(NH3)6]3+will form ______ structure

Question # 12

Out of 110 known elements, transition elements are

Question # 13

Which is not a bidentate ligand

Question # 14

Which one of the following metal ions is colourless?

Question # 15

Which of the following is not related to transition metals

Question # 16

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

Question # 17

What are alloys

Question # 18

Bessemer converter is used in the manufacture of

Question # 19

Besides Zn and Cu , German silver contains the metal

Question # 20

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

Question # 21

Among the lanthandes the one obtained by synthetic method is

Question # 22

Which of the following is used as disinfectant

Question # 23

The coordination number of iron in [Fe(H2O)6]3+is

Question # 24

The colour of transition metal complexes is due to

Question # 25

Interstitial compounds have

Question # 26

Which of the following is obtained when Fe reacts with dil. HNO3?

Question # 27

A transition element is defined as an element of 3d series

Question # 28

4-d series is in the period:

Question # 29

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

Question # 30

Steel may be manufacture by two processes which two are correct

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 Which of the following is a carbonate are?
A. Pyrolusite
B. Malchite
C. Diaspore
D. cassiterite
2 In the electronic configuration of Cr one electron from 4s sub-shell is transfered to 3d sub-shell because
A. The 3rd orbital is of lower energy than 4s
B. The 4s orbital is of equal energy to 3d orbital
C. The half filled d-subshell is more stable than incomplete d-sub shell
D. 6 unpaired electrons make Cr more paramagnetic
3 Series starting form 39Y to 48CD is in period:
A. 4th
B. 5th
C. 6th
D. 7th
4 An oxidixing agent
A. K2Cr2O7
B. H2SO4
C. FeSO4
D. K2SO4
5 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
6 Which of the following d-block elements can show the highest oxidation number in its compounds
A. Chromium
B. Copper
C. Nickel
D. Manganese
7 Rusting can be avoided by :
A. Making alloys
B. Tin or Zinc plating
C. Use of enamel
D. All of these
8 The total number of transition elements is
A. 10
B. 14
C. 40
D. 50
9 The total number of transition elements is:
A. 10
B. 14
C. 40
D. 50
10 Which of the following is a typical transition metal?
A. Sc
B. Y
C. Ra
D. Co

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