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

Bell metal is an alloy of Sn and

Question # 2

What are alloys

Question # 3

The less reactivity of transition metal is due to

Question # 4

Which is not a bidentate ligand

Question # 5

Rusting of iron is catalysed by

Question # 6

Maximum variable oxidation state is of:

Question # 7

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

Question # 8

Fe+3and Mn2+are strong paramagnetic because the number of unpaired electrons in each is

Question # 9

Corrosion of iron can be prevented by coating the surface with

Question # 10

Coordination number of Pt in [PtCl (NO2) (NH3)4]2-

Question # 11

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

Question # 12

Transition metals form complexes due to the participation of partially filled

Question # 13

Choose the correct answer of transition elements?

Question # 14

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

Question # 15

Out of 110 known elements, transition elements are

Question # 16

Coordination sphere may be:

Question # 17

The formula of curprite is

Question # 18

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

Question # 19

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

Question # 20

Which period starts from 11Sc to 30Zn ?

Question # 21

High purity copper metal is obtained by

Question # 22

The total number of d-bock transition element is

Question # 23

The amount of Ni in stainless steel is

Question # 24

Group VIB of transition elements contains

Question # 25

Which element does not belong to 3d transition series

Question # 26

Corrosion may be prevented by

Question # 27

Which one of the following metal ions is colourless?

Question # 28

Which of the following is a not typical transition element

Question # 29

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

Question # 30

The equivalent weight of KMnO4(formula weight = M) when it is used as an oxidant in neutral medium is

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ECAT Chemistry Chapter 17 Important MCQ's

Sr.# Question Answer
1 The colour of the transition metal compounds is due to
A. p-d transition
B. d-d transition
C. s-p transition
D. None of these
2 The oxidation number of Ni in [Ni(CO)4] is
A. +1
B. 0
C. +4
D. -4
3 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
4 Corrosion may be prevented by
A. Allcying
B. Paints
C. Metallic coatings
D. All
5 The number of unpaired electrons in ferrous ion ( Z - 26) is
A. 3
B. 2
C. 4
D. 5
6 E.D.T.A is
A. Mono-dentate
B. Bi-dentate
C. Polydentate
D. Having three lone pairs of electrons
7 What are alloys
A. A homogenous mixture of two or more elements
B. A homohenous mixture of metal and a non-metal
C. A homogenous mixture of two or more metals
D. None of the above
8 The formula of curprite is
A. Cu2S
B. Cus
C. Cu2O
D. CuCO3
9 The iron obtained from blast furnace is
A. Pig iron
B. Wrought ion
C. Soft ion
D. Steel
10 Which element has 4 unpaired electrons in 3d-orbital
A. Chromium - 24
B. Manganese - 25
C. Iron - 26
D. Cobalt - 27

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