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

Oxalic acid oxidizes to:

Question # 2

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

Question # 3

Iron, once dipped in concentrated H2SO4, does not displace copper from copper sulphates solution, because

Question # 4

Transition metals mostly are

Question # 5

The geometrical shape of a transition complexion is related to the state of hybridizing of the central atom. What is trigonal bipyramidal

Question # 6

The colour of the transition metal compounds is due to

Question # 7

In the extraction of iron, slag is produced which is

Question # 8

The lanthanides contraction is responsible for the fact that

Question # 9

In the electronic configuration of Cr one electron from 4s sub-shell is transfered to 3d sub-shell because

Question # 10

The protection of steel by chrome plating is due to

Question # 11

Which of the following is a typical transition metal

Question # 12

Which metal is used for catalytic hydrogenation of oils

Question # 13

Bell metal is an alloy of Sn and

Question # 14

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

Question # 15

The number of unpaired electrons in Fe3+(Z = 26) are

Question # 16

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

Question # 17

Bell metal is an alloy of

Question # 18

Which of the following is a not typical transition element

Question # 19

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 # 20

The percentage of carbon in different types of iron products is in the order of:

Question # 21

Among the lanthandes the one obtained by synthetic method is

Question # 22

What is wrong about transition metals?

Question # 23

Coordination number of Pt in [PtCI(NO2) (NH3)4]2+is

Question # 24

Which of the following is a carbonate are?

Question # 25

Which is used to identify Cu2+ions

Question # 26

The color of Cr3+ion is

Question # 27

The number of unpaired electrons in ferrous ion ( Z - 26) is

Question # 28

Which of the following is a non-typical transition elements

Question # 29

Which element has 4 unpaired electrons in 3d-orbital

Question # 30

Group VIB of transition elements contains

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 Which of the following is a typical transition metal?
A. Sc
B. Y
C. Ra
D. Co
2 Oxalic acid oxidizes to:
A. CO
B. CO2
C. Oxalates
D. None of these
3 What is the shape of Fe(CO)5molecule?
A. Tetrahedral
B. Octahedral
C. Trigonal bipyramidal
D. Square pyramidal
4 Titanium is used as a catalyst in
A. Hydrogenation
B. Dehydrogenation
C. Polymerization of P.E.
D. Oxidation of ammonia
5 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
A. Blue
B. Red
C. Yellow
D. Mixture of blue and red or violet
6 Which one of the following has highest density
A. Zn
B. Os
C. Ni
D. Cu
7 The total number of transition elements is:
A. 10
B. 14
C. 40
D. 50
8 During oxidation in k2Cr2O7, Cr VI changes to :
A. I
B. II
C. III
D. IV
9 The free spaces between the metal atoms and its crystal lattice are called
A. Valance spaces
B. Empty spaces
C. Interstices
D. None
10 Among the lanthandes the one obtained by synthetic method is
A. Lu
B. Pm
C. Pr
D. Gd

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