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

In an ooctahedral crystal field splitting, the number of orbitals pushed down in energy is

Question # 2

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

Question # 3

IIB elements (Zn, Cd, Hg) and III B elements (Sc, Y and La) are

Question # 4

Which one of the following has highest density

Question # 5

Property of transition element is :

Question # 6

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

Question # 7

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

Question # 8

Transition metals mostly are

Question # 9

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

Question # 10

Coordination sphere may be:

Question # 11

The colour of the transition metal compounds is due to

Question # 12

An oxidixing agent

Question # 13

The total number of transition elements is

Question # 14

Which of the following is a non-typical transition elements

Question # 15

Which of the following is not an element?

Question # 16

f-Block elements are also called

Question # 17

What is the shape of Fe(CO)5molecule?

Question # 18

The geometry of [Co(NH3)6]3+is

Question # 19

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

Question # 20

The colour of transition metal complexes is due to

Question # 21

In physical and chemical properties, transition elements show

Question # 22

Bell metal is an alloy of Sn and

Question # 23

Cu2+with d9electronic configuration appears

Question # 24

Bronze is an alloy of Cu and

Question # 25

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

Question # 26

The oxidation state of Fe in [Fe(CN)6]3-is

Question # 27

The amount of Ni in stainless steel is

Question # 28

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

Question # 29

In the extraction of iron, slag is produced which is

Question # 30

Misch mental is

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Sr.# Question Answer
1 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
2 An element in +3 oxidation state has the electronic configuration (Ar) 3d3. Its atomic number is
A. 24
B. 23
C. 22
D. 21
3 In the extraction of iron, slag is produced which is
A. CO
B. FeSiO3
C. MgSiO3
D. CaSiO3
4 Rusting of iron is catalysed by
A. Fe
B. O2
C. Zn
D. H+
5 Which of the following is a typical transition metal
A. Sc
B. Y
C. Ra
D. Co
6 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
7 Bell metal is an alloy of
A. Cu, Zn, and Sn
B. Cu, Zn and Ni
C. Cu and Zn
D. Cu and Sn
8 Group VI-B of transition elements contains:
A. Zn, Cd, Hg
B. Fe ,Ru ,Os
C. Cr, Mo ,W
D. Mn, Te, Re
9 Corrosion of iron can be prevented by coating the surface with
A. Zn
B. Sn
C. Ni
D. Any of the above
10 A phtotographic plate is coated with an emulsion of silver nitrate and
A. AgCI
B. AgI
C. AgBr
D. NaNO3
11 Which of the following has the maximum number of unpaired d-electrons?
A. Zn
B. Fe2+
C. Ni3+
D. Cu+
12 The total number of d-bock transition element is
A. 10
B. 14
C. 40
D. 30
13 Which of the following transition metal ions will have definite value of magnetic moment?
A. Se3+
B. Ti3+
C. Cu+
D. Zn2+
14 Series starting from57La,42Hf -80Hg is in the period:
A. 4th
B. 5th
C. 6th
D. 7th
15 The amount of Ni in stainless steel is
A. 3%
B. 4%
C. 5%
D. 8%
16 Transition elements differ from s and p block elements due to their characteristic properties. What is not he characteristic property of transition elements
A. Transition elements show variable oxidation states
B. Their salts are coloured
C. They can be used as catalyst
D. All of them are metals
17 The total number of rare earth elements is
A. 8
B. 32
C. 14
D. 10
18 Which of the following metals is sometimes found in native state in nature?
A. Al
B. Cu
C. Fe
D. Mg
19 Iron, once dipped in concentrated H2SO4, does not displace copper from copper sulphates solution, because
A. It less reactive than copper
B. A layer of sulphates is deposited on it
C. An inert layer of iron oxide is deposited on it
D. All valence electrons of iron are consumed
20 [Ti(H2O)6]+3ion absorbs colour:
A. Blue
B. Yellow
C. Green
D. Red
21 The Mn3+has ______ color
A. Violet
B. Green
C. Red/brown
D. No color
22 Mercury is the only metal which is liquid at 0°C. this is due to its
A. Very high ionization energy and weak metallic bond
B. Low ionization potential
C. High atomic weight
D. High vapour pressure
23 Besides Zn and Cu , German silver contains the metal
A. Sn
B. Ag
C. Ni
D. Mg
24 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 iron
C. Cast iron > steel > wrought iron
D. Cast iron = steel > wrought iron
25 Which metal is used for catalytic hydrogenation of oils
A. Cu
B. Pt
C. Ni
D. Pd
26 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
27 The total number of transition elements is:
A. 10
B. 14
C. 40
D. 50
28 The total number of inner transition elements in the periodic table is
A. 10
B. 14
C. 28
D. 30
29 The coordination number of iron in [Fe(H2O)6]3+is
A. 2
B. 3
C. 4
D. 6
30 CuSO4. 5H2O is used to prepare
A. Transition complex
B. Fehling's 'A' sol
C. Fehling's 'B' sol
D. Fehling's sol

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