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

00:00
Question # 1

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

Question # 2

Which element has 4 unpaired electrons in 3d-orbital

Question # 3

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

Question # 4

Which element belong to 5d series

Question # 5

Which of the following is a non-typical transition elements

Question # 6

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

Question # 7

Which element does not belong to 3d transition series

Question # 8

Potassium ferrocyanide is a

Question # 9

The number of unpaired electrons in Mn2+is

Question # 10

Corrosion may be prevented by

Question # 11

The compound which gives oxygen on moderate heating is

Question # 12

Which of the following is used as disinfectant

Question # 13

Bell metal is an alloy of

Question # 14

Which of the following is not an element?

Question # 15

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

Question # 16

Which of the following element is responsible for oxidation of water to O2in biological process?

Question # 17

What are alloys

Question # 18

Stainless steel contains ion and carbon along with

Question # 19

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

Question # 20

Stainless steel contains Cr upto

Question # 21

d-block elements are also called :

Question # 22

The total number of transition elements is

Question # 23

Maximum variable oxidation state is of:

Question # 24

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

Question # 25

A phtotographic plate is coated with an emulsion of silver nitrate and

Question # 26

6-d series is in the period :

Question # 27

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

Question # 28

In physical and chemical properties, transition elements show

Question # 29

f-block elements are called :

Question # 30

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

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 In the extraction of iron, slag is produced which is
A. CO
B. FeSiO3
C. MgSiO3
D. CaSiO3
2 The total number of rare earth elements is
A. 8
B. 32
C. 14
D. 10
3 Which is the correct electronic configuration of Cr - 24
A. 1s2, 2s2, 2p6, 3s2, 3p6, 3d4, 4s2
B. 1s2, 2s2, 2p6, 3s2, 3p6, 3d3, 4s2, 4p1
C. 1s2, 2s2, 2p6, 3s2, 3p6, 3d5, 4s1
D. 1s2, 2s2, 2p6, 3s2, 3p6, 3d5, 4p1
4 The equivalent weight of KMnO4(formula weight = M) when it is used as an oxidant in neutral medium is
A. M
B. M/2
C. M/3
D. M/5
5 The oxidation state of Fe in [Fe(CN)6]3-is
A. +2
B. +3
C. +4
D. -3
6 Solubility of KMnO4 at higher temperature is:
A. 5%
B. 7%
C. 15%
D. 25%
7 The percentage of carbon in different types of iron products is in the order of:
A. Cast iron > wrought iron > steel
B. wrought iron > steel > cast rion
C. Cast iron > steel > wrought iron
D. Cast iron = steel > wrought iron
8 Steel may be manufacture by two processes which two are correct
A. Open hearth process and besemer process
B. Open hearth process and Haber process
C. Bassemer process and Haber process
D. Contact process and Haber process
9 Cu2+with d9electronic configuration appears
A. Yellow
B. Pink
C. Blue
D. Green
10 Transition elements form which type of bond
A. Ionic bonds only
B. Covalent bonds only
C. Ionic and covalent bonds
D. Polar bonds

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