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

During oxidation in k2Cr2O7, Cr VI changes to :

Question # 2

Bell metal is an alloy of

Question # 3

The iron obtained from blast furnace is

Question # 4

Steel may be manufacture by two processes which two are correct

Question # 5

Which of the following elements does not show variable oxidation states?

Question # 6

What are alloys

Question # 7

d-block elements are also called :

Question # 8

Addition of iron fillings to CuSO4solution caused precipitation of Cu owing to the

Question # 9

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

Question # 10

Content of carbon in steel is:

Question # 11

Corrosion may be prevented by

Question # 12

Which period starts from 11Sc to 30Zn ?

Question # 13

Which alloy contains 50% copper, 25% zinc and 25% nickel

Question # 14

Electronic configuration of Cu+2is

Question # 15

Which of the following is non-typical transition element?

Question # 16

Which of the following is not an element?

Question # 17

The colour of transition metal complexes is due to:

Question # 18

Transition metals mostly are

Question # 19

Rusting can be avoided by :

Question # 20

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

Question # 21

Which is in differnet phase form other metals

Question # 22

Solubility of KMnO4 at higher temperature is:

Question # 23

Which of the following is used as disinfectant

Question # 24

Bronze is an alloy which contains

Question # 25

Coordination sphere may be:

Question # 26

An element in +3 oxidation state has the electronic configuration (Ar) 3d3. Its atomic number is

Question # 27

f-block elements are called :

Question # 28

The colour of transition metal complexes is due to

Question # 29

Which of the following is a typical transition metal?

Question # 30

Which of the following is not correct about transition metals?

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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 Which one of the following has highest density
A. Zn
B. Os
C. Ni
D. Cu
3 The geometrical shape of a transition complexion is related to the state of hybridizing of the central atom. What is trigonal bipyramidal
A. sp3
B. dsp2
C. dsp3
D. d2sp3
4 Cu2+with d9electronic configuration appears
A. Yellow
B. Pink
C. Blue
D. Green
5 [Zn(NH3)4]3+possess geometry
A. Square plannar
B. Hexagonal
C. Tetrahedral
D. None of these
6 Which of the following element is responsible for oxidation of water to O2in biological process?
A. Fe
B. Mn
C. Cu
D. Mo
7 Most transition elements show
A. Diamagnetic behavior
B. Ferromagnetic behavior
C. Paramagnetic behavior
D. None of these
8 The formula of curprite is
A. Cu2S
B. Cus
C. Cu2O
D. CuCO3
9 Which of the following has the maximum number of unpaired d-electrons?
A. Zn
B. Fe2+
C. Ni3+
D. Cu+
10 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

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