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

Bronze is an alloy of Cu and

Question # 2

The total number of transition elements is

Question # 3

Interstitial compounds have

Question # 4

What are alloys

Question # 5

Titanium is used as a catalyst in

Question # 6

Steel may be manufacture by two processes which two are correct

Question # 7

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

Question # 8

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

Question # 9

Which of the following is not correct about transition metals?

Question # 10

The colour of the transition metal compounds is due to

Question # 11

Which is the formula of tetra-ammine chloro-nitro platinum (IV) sulphate

Question # 12

Corrosion of iron can be prevented by coating the surface with

Question # 13

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

Question # 14

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

Question # 15

E.D.T.A is

Question # 16

Choose the correct answer of transition elements?

Question # 17

The color of Cr3+ion is

Question # 18

Among the lanthandes the one obtained by synthetic method is

Question # 19

[Cu[NH3)4]+2will form ______ structure

Question # 20

Transition metals form complexes due to the participation of partially filled

Question # 21

Non-formation of menisus by Hg in presence of O3is due to the formation of

Question # 22

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

Question # 23

Most transition elements show

Question # 24

The iron obtained from blast furnace is

Question # 25

Which of the following is obtained when Fe reacts with dil. HNO3?

Question # 26

Mercury is the only metal which is liquid at 0°C. this is due to its

Question # 27

High purity copper metal is obtained by

Question # 28

Most common oxidation states shownby cerium are

Question # 29

d-block elements are also called :

Question # 30

Coordination sphere may be:

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Sr.# Question Answer
1 The oxidation state of Fe in [Fe(CN)6]3-is
A. +2
B. +3
C. +4
D. -3
2 Most transition elements show
A. Diamagnetic behavior
B. Ferromagnetic behavior
C. Paramagnetic behavior
D. None of these
3 E.D.T.A is
A. Mono-dentate
B. Bi-dentate
C. Polydentate
D. Having three lone pairs of electrons
4 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
5 4-d series is in the period:
A. 4th
B. 5th
C. 6th
D. 7th
6 The colour of a transition metal complex is due to d-d transition The colour of the complex is the complementary of the colour absorbed. Thus [Ti(H2O6]3+abosrbs yellow light and transmits blue and red colours therefore the solution of titanium complex appears
A. Blue
B. Red
C. Yellow
D. Mixture of blue and red or violet
7 Which element belong to 5d series
A. V
B. Nb
C. Pd
D. Hf
8 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
9 Corrosion may be prevented by
A. Allcying
B. Paints
C. Metallic coatings
D. All
10 Transition elements form which type of bond
A. Ionic bonds only
B. Covalent bonds only
C. Ionic and covalent bonds
D. Polar bonds
11 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
12 Which of the following is a typical transition metal
A. Sc
B. Y
C. Ra
D. Co
13 Electronic configuration of Cu+2is
A. 4S2, 3d9
B. 4s-1, 3d10
C. 4S0, 3d9
D. None of these
14 The total number of inner transition elements in the periodic table is
A. 10
B. 14
C. 28
D. 30
15 What is wrong about transition metals?
A. Diamagnetic
B. Paramagnetic
C. Form complexes
D. Shows variable oxidation state
16 Which of the following is not an element?
A. Graphite
B. Diamond
C. 22-Carat gold
D. Rhombic sulphur
17 Which alloy contains 50% copper, 25% zinc and 25% nickel
A. German silver
B. Gun metal
C. Bell metal
D. Brass
18 Which of the following is obtained when Fe reacts with dil. HNO3?
A. N2O
B. NO
C. NO2
D. None of these
19 The oxidation number of Ni in [Ni(CO)4] is
A. +1
B. 0
C. +4
D. -4
20 Which metal is used for catalytic hydrogenation of oils
A. Cu
B. Pt
C. Ni
D. Pd
21 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
22 Maximum variable oxidation state is of:
A. Mn+2
B. Fe+3
C. Cr+1
D. a and b
23 Series starting form 39Y to 48CD is in period:
A. 4th
B. 5th
C. 6th
D. 7th
24 German silver does not contain
A. Cu
B. Zn
C. Ni
D. Mn
25 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
26 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
27 5-d series is in the period :
A. 4th
B. 5th
C. 6th
D. 7th
28 Which of the following is a transition element
A. Sr
B. Sn
C. Cr
D. Pb
29 During oxidation in k2Cr2O7, Cr VI changes to :
A. I
B. II
C. III
D. IV
30 Bell metal is an alloy of
A. Cu, Zn, and Sn
B. Cu, Zn and Ni
C. Cu and Zn
D. Cu and Sn

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