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 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 # 2

Which of the following compounds gives red precipitate with AgNO3?

Question # 3

The Mn3+has ______ color

Question # 4

[Ti(H2O)6]+3ion absorbs colour:

Question # 5

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

Question # 6

Which of the following has the maximum number of unpaired d-electrons?

Question # 7

The oxidation number of Ni in [Ni(CO)4] is

Question # 8

Which metal is used for catalytic hydrogenation of oils

Question # 9

Which of the following transition metal ions will have definite value of magnetic moment?

Question # 10

The iron obtained from blast furnace is

Question # 11

Transition metals mostly are

Question # 12

Which one of the following metal ions is colourless?

Question # 13

The total number of d-bock transition element is

Question # 14

In physical and chemical properties, transition elements show

Question # 15

The amount of Ni in stainless steel is

Question # 16

Stainless steel contains ion and carbon along with

Question # 17

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

Question # 18

Which of the following is a typical transition metal?

Question # 19

Platinum (IV) chloride combines with ammonia to form compounds in which the coordination number of the platinum is 6. A formula unit on one of the compound contains a cation and only two chloride ions. What is the formula of this compound

Question # 20

Most common oxidation states shownby cerium are

Question # 21

Steel may be manufacture by two processes which two are correct

Question # 22

Which is the correct electronic configuration of Cr - 24

Question # 23

Transition elements differ from s and p block elements due to their characteristic properties. What is not he characteristic property of transition elements

Question # 24

In the extraction of iron, slag is produced which is

Question # 25

Which one of the following has highest density

Question # 26

The total number of inner transition elements in the periodic table is

Question # 27

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

Question # 28

Which element belong to 5d series

Question # 29

Titanium is used as a catalyst in

Question # 30

The total number of transition elements is

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 What is wrong about transition metals?
A. Diamagnetic
B. Paramagnetic
C. Form complexes
D. Shows variable oxidation state
2 An oxidixing agent
A. K2Cr2O7
B. H2SO4
C. FeSO4
D. K2SO4
3 Corrosion may be prevented by
A. Allcying
B. Paints
C. Metallic coatings
D. All
4 Which of the following is used as disinfectant
A. K2Cr2O7
B. KMnO4
C. K2MnO4
D. K2CrO4
5 Transition metals form complexes due to the participation of partially filled
A. f-orbitals
B. d-orbitals
C. s-orbitals
D. p-orbitals
6 Bell metal is an alloy of Sn and
A. Copper
B. Iron
C. Zinc
D. Magnesium
7 Which one of the following has highest density
A. Zn
B. Os
C. Ni
D. Cu
8 The colour of transition metal complexes is due to
A. d-d transitions of electrons
B. Para magnetic nature of transition elements
C. Ionization
D. Loss of s-electrons
9 Rusting of iron is catalysed by
A. Fe
B. O2
C. Zn
D. H+
10 Cuprous ore among the following is
A. Chalcopyites
B. Azurite
C. Cuprite
D. Malachitre

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