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

Steel may be manufacture by two processes which two are correct

Question # 2

Most transition elements show

Question # 3

Out of 110 known elements, transition elements are

Question # 4

Which metal is used for catalytic hydrogenation of oils

Question # 5

Which of the following is a transition element

Question # 6

Which alloy contains 50% copper, 25% zinc and 25% nickel

Question # 7

Turnbull's blue is a compound called?

Question # 8

Which of the following is a non-typical transition elements

Question # 9

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

Question # 10

Potassium hexacyanoferrate (II) has the formula

Question # 11

The formula of curprite is

Question # 12

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

Question # 13

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

Question # 14

Which is used to identify Cu2+ions

Question # 15

Bell metal is an alloy of

Question # 16

Transition elements form which type of bond

Question # 17

E.D.T.A is

Question # 18

Most common oxidation states shownby cerium are

Question # 19

Corrosion may be prevented by

Question # 20

Property of transition element is :

Question # 21

Addition of iron fillings to CuSO4solution caused precipitation of Cu owing to the

Question # 22

d-block elements are also called :

Question # 23

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

Question # 24

Platinum (IV) chloride combines with ammonia to form compounds in which the coordination number of the platinum is 6. A formula unit on one of the compound contains a cation and only two chloride ions. What is the formula of this compound

Question # 25

The lanthanides contraction is responsible for the fact that

Question # 26

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

Question # 27

A transition element is defined as an element of 3d series

Question # 28

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

Question # 29

Which of the following is a typical transition metal

Question # 30

Which period starts from 11Sc to 30Zn ?

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Sr. # Question Answer
1 Elements in which f-orbitals are in the process of completion are called

A. Outer transition element

B. Inner transition elements

C.Non-tranistion elements

D. Radioactive elements

2 Corrosion of iron can be prevented by coating the surface with

A. Zn

B. Sn

C.Ni

D. Any of the above

3 [Zn(NH3)4]3+possess geometry

A. Square plannar

B. Hexagonal

C.Tetrahedral

D. None of these

4 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

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

A. [Pt(NH3)4(NO2)] SO4

B. [Pt NO2CI(NH3)4] SO4

C.[Pt CI(NO2) (NH3)4] SO4

D. [Pt (NH3)4(NO2) CI] SO4

6 Group VIB of transition elements contains

A. Zn, Cd, Hg

B. Fe, Ru, Os

C.Cr, Mo, W

D. Mn, Te, Re

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

A. Tetracarbonylnickel (o)

B. Tetracabonylnickel

C.Tetracabonylnickel (II)

D. Tetracabonylnickel (IV)

8 Which of the following is non-typical transition element?

A. Cr

B. Mn

C.Zn

D. Fe

9 The free spaces between the metal atoms and its crystal lattice are called

A. Valance spaces

B. Empty spaces

C.Interstices

D. None

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

A. 3

B. 2

C.4

D. 5

11 Potassium hexacyanoferrate (II) has the formula

A. K4[Fe(CN)6]

B. K3[Fe(CN)6]

C.K2[Fe(CN)6]

D. K [Fe(CN)6]

12 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

13 An oxidixing agent

A. K2Cr2O7

B. H2SO4

C.FeSO4

D. K2SO4

14 Which of the following compounds gives red precipitate with AgNO3?

A. Kl

B. K2CrO4

C.NaBr

D. NaNO3

15 The colour of transition metal complexes is due to:

A. d-d transitions of electorns

B. Paramagnetic nature of transition

C.Ionization

D. Loss of s-electrons

16 f-Block elements are also called

A. Non typical transition elements

B. Outer transition elements

C.Normal transition elements

D. Inner transition elements

17 Addition of iron fillings to CuSO4solution caused precipitation of Cu owing to the

A. Reduction of Cu2+

B. Oxidation of Cu2+

C.Reduction of Fe

D. Reduction of Fe3+

18 Rusting of iron is catalysed by

A. Fe

B. O2

C.Zn

D. H+

19 Which of the following is a typical transition metal

A. Sc

B. Y

C.Ra

D. Co

20 Which of the following is not an element?

A. Graphite

B. Diamond

C.22-Carat gold

D. Rhombic sulphur

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

A. +2

B. +3

C.+4

D. +5

22 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

23 Which is in differnet phase form other metals

A. Ni

B. Hg

C.Cd

D. Na

24 Which is not a bidentate ligand

A.

25 In physical and chemical properties, transition elements show

A. Similarities

B. Dissimilarities

C.Both of these

D. Somestimes similarities, sometimes dissimilarities

26 Bronze is an alloy of Cu and

A. Zn

B. As

C.Sb

D. Sn

27 Among the lanthandes the one obtained by synthetic method is

A. Lu

B. Pm

C.Pr

D. Gd

28 Series starting form 39Y to 48CD is in period:

A. 4th

B. 5th

C.6th

D. 7th

29 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

30 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

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