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

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

Question # 2

The colour of transition metal complexes is due to

Question # 3

The Mn3+has ______ color

Question # 4

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

Question # 5

[Zn(NH3)4]3+possess geometry

Question # 6

Which of the following is a non-typical transition elements

Question # 7

Which element does not belong to 3d transition series

Question # 8

Which is the formula of tetra-ammine chloronitro platinum (VI) sulphate?

Question # 9

Which metal is used for catalytic hydrogenation of oils

Question # 10

Stainless steel contains Cr upto

Question # 11

Transition metals mostly are

Question # 12

Which has the largest radius?

Question # 13

An oxidixing agent

Question # 14

The compound which gives oxygen on moderate heating is

Question # 15

The elements in which d or f-orbitals are incomplete are called

Question # 16

Which is not a bidentate ligand

Question # 17

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

Question # 18

What is the name of the comlex [Ni(CO)4]

Question # 19

Rusting of iron is catalysed by

Question # 20

AgCl is soluble is

Question # 21

During oxidation in k2Cr2O7, Cr VI changes to :

Question # 22

Which period starts from 11Sc to 30Zn ?

Question # 23

Stainless steel contains ion and carbon along with

Question # 24

E.D.T.A is

Question # 25

Which element does not belong to 4d series

Question # 26

Corrosion may be prevented by

Question # 27

The colour of transition metal complexes is due to

Question # 28

Transition elements form which type of bond

Question # 29

What is wrong about transition metals?

Question # 30

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

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Sr.# Question Answer
1 The lanthanides contraction is responsible for the fact that
A. Zr and Y have about the same radius
B. Zr and Nb have similar oxidsation state
C. Zr and Hf have about the same radius
D. Zr and Zn have the same oxidation satete
2 Property of transition element is :
A. Low m.p and b.p
B. Parramagnetism
C. Oxidation state
D. Low binding energies
3 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
4 Corrosion may be prevented by
A. Allcying
B. Paints
C. Metallic coatings
D. All
5 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
6 Which is non typical transition element :
A. Ni
B. Co
C. Y
D. Fe
7 Transition elements are called so because:
A. Form interstital sompounds
B. have high m.p
C. In between 's' and' 'p' block elements
D. All of these
8 Choose the correct answer of transition elements?
A. Transition elements have low melting points
B. Transition elements do not have catalytic activity
C. Transition elements exhibit variable oxidation states
D. Transition elements exhibit inert pair effect
9 Group VI-B of transition elements contains:
A. Zn, Cd, Hg
B. Fe ,Ru ,Os
C. Cr, Mo ,W
D. Mn, Te, Re
10 Titanium is used as a catalyst in
A. Hydrogenation
B. Dehydrogenation
C. Polymerization of P.E.
D. Oxidation of ammonia
11 Which of the following is a typical transition metal?
A. Sc
B. Y
C. Ra
D. Co
12 Bronze is an alloy which contains
A. 60% cu
B. 70% cu
C. 80% cu
D. 99% cu
13 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
14 Bronze is an alloy of Cu and
A. Zn
B. As
C. Sb
D. Sn
15 The Mn3+has ______ color
A. Violet
B. Green
C. Red/brown
D. No color
16 IIB elements (Zn, Cd, Hg) and III B elements (Sc, Y and La) are
A. Non typical transition element
B. Typical transition element
C. Normal elements
D. Inner transition element
17 In the manufacture of iron from haematitie,limestone is added to act as
A. Flux
B. A reducing agent
C. Slag
D. An oxidizing agent
18 How many mole of acidfied FeSO4solution can be completely oxidized by one mole of KMNO4?
A. 10
B. 5
C. 6
D. 2
19 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
20 The amount of Ni in stainless steel is
A. 3%
B. 4%
C. 5%
D. 8%
21 Which one of the following has highest density
A. Zn
B. Os
C. Ni
D. Cu
22 Besides Zn and Cu , German silver contains the metal
A. Sn
B. Ag
C. Ni
D. Mg
23 CuSO4. 5H2O is used to prepare
A. Transition complex
B. Fehling's 'A' sol
C. Fehling's 'B' sol
D. Fehling's sol
24 Which is used to identify Cu2+ions
A. Nitric acid
B. Sulfuric acid
C. NaOH
D. HCI
25 Oxalic acid oxidizes to:
A. CO
B. CO2
C. Oxalates
D. None of these
26 In the electronic configuration of Cr one electron from 4s sub-shell is transfered to 3d sub-shell because
A. The 3rd orbital is of lower energy than 4s
B. The 4s orbital is of equal energy to 3d orbital
C. The half filled d-subshell is more stable than incomplete d-sub shell
D. 6 unpaired electrons make Cr more paramagnetic
27 All 3d series elements show variable oxidation states. The one shown by all 3d elements is
A. +2
B. +3
C. +4
D. +5
28 f-Block elements are also called
A. Non typical transition elements
B. Outer transition elements
C. Normal transition elements
D. Inner transition elements
29 Which of the following metals is sometimes found in native state in nature?
A. Al
B. Cu
C. Fe
D. Mg
30 Which of the following is a typical transition metal
A. Sc
B. Y
C. Ra
D. Co

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