Home/ECAT/ECAT Chemistry Transition Elements Test Online

ECAT Chemistry Transition Elements Test Online

Mustansar KhanLast Updated: April 19, 2025

Chemistry Transition Elements MCQS Online Test

ECAT Chemistry Transition Elements Chapter Online Test

Total Questions:	121
Time Allowed:	60 Minutes
Total Marks:	121
How to Attempt Test:	Please choose the right Option in MCQ-type question.
Test Helpful For:	ECAT Entry Test Chemistry Online Test Interview Questions about Chemisttry All Universities Entrance Test Recruitments Tests

ECAT Chemistry Transition Elements Test

Page 1 of 5

Chemistry

1. The %age of C in different type of iron products is in the order of

Cast iron > steel > wrought iron

Wrought iron > steel > cast iron

Cast iron = steel > wrought iron

Cast iron > wrought iron > steel

2. Most transition elements show

Paramagnetic behavior

Ferromagnetic behavior

None of these

Diamagnetic behavior

3. The number of unpaired electron in ferrous ion (Z = 26) is

4. The expected geometry of the compound containing d²Sp³ hybridization of central metal is

Trigonal

Octahedral

Tetrahedral

Hexagonal

5. Which of the following is not correct about transition metals?

They can for ionic or covalent compounds

Their compounds are generally coloured

Their melting and boiling points are high

They do not exhibit variable valency

6. Radii of transition element

Increase from left to right

First increase then decrease

Firstly decreases then increase at the end

Decrease from left to right

7. Turnbull’s blue is a compound called?

Ferrous ferricyanide

Ferrous cyanide

Ferri -Ferro cyanide

Ferricyanide

8. Salts of __________ are colorless

Zinc

Copper

9. Acidified KMnO₄ is decolorized by

White vitrol

Microcosmic salt

Bleaching powder

Mohr’s salt

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

Cu³⁺

Sc³⁺

Zn²⁺

Ti³⁺

11. Para magnetism is exhibited by d-block elements due to the presence of

Incomplete f-orbitals

Paired electron

Unpaired electron

None of these

12. Color of silver iodide is

Blue

Deep yellow

Pink

White

13. The total number of rare earth elements is

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

Trigonal bipyramidal

Square pyramidal

Tetrahedral

Octahedral

15. Which of the following element is responsible for oxidation of water to O₂ in biological process?

16. Transition metal ion give colour due to

p – p transition

s – p transition

charge transfer

d – d transition

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

Low ionization potential

High atomic weight

High vapour pressure

Very high ionization energy and weak metallic bond

18. Cathodic protection of iron involves the use of

Copper

19. Stainless steel contains

8% nickel

Ni is not present is steel

18% Ni

28% Ni

20. Most common oxidation states shown by cerium are

+3, +5

+2, +4

+3, +4

+2, +3

21. Potassium ferrocyanide (potassium hexacyano ferrate II) is a/an ________ complex

Anionic

Neutral

Cationic

None of these

22. Ni belongs to which series of transition elements

First

Fourth

Third

Second

23. Among the lanthandes the one obtained by syntheric method is

24. Addition of iron fillings to CuSO₄ solution caused precipitation of Cu owing to the

Reduction of Fe³⁺

Oxidation of Cu²⁺

Reduction of Cu²⁺

Reduction of Fe

25. The usual Oxidation state of the elements of lanthanide series is

+ 3

+ i

+ 2

+ 4

Page 2 of 5

26. Bessemer converter is used in the manufacture of

Wrought iron

Pig iron

Steel

Cast iron

27. O₂ can be obtained from solid KMnO₄ by

Treating with H₂

Dissolving the solid in dil HCl

Strongly heating the solid

Dissolving the solid in dil H₂SO₄

28. The reaction MnO₄ + e ⇌ MnO²¯₄ takes place in

A neutral medium

An acid medium

Both acidic and basic media

A basic medium

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

None of these

NO₂

N₂O

30. The outer electronic configuration of an element is 3d⁶, 4s². The element is

31. MnO₄ ion has a colour

Colourless

Orange

Purple

Pink

32. Which one shows highest number of oxidation states?

33. m.p and b.p of transition elements has a direct relation with

Block of the element

Physical state of element

Number of electrons in valence

Binding energies

34. Which of the following is not an element?

Graphite

22-Carat gold

Diamond

Rhombic sulphur

35. The number of unpaired electrons in Mn²⁺ is

36. The total number of d – block elements is

630

110

37. Stability is associated with when

d¹

d⁵

d³

d⁴

38. German silver does not contain

39. The highest percentage of C is in

Pig iron

Wrought ion

All have same percentage

Steel

40. How many moles of acidified FeSO₄ solution can be completely oxidized by one mole of KMnO₄?

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

42. In the manufacture of iron from haematite, limestone is added to act as:

A reducing agent

Slag

Flux

An oxidizing agent

43. Transition elements are

None of these

Which have complete d and f subshell

Which have partially filled d and f subshell

Which have half-filled d and f subshell

44. Bell metal is an alloy of

Cu, Zn and Ni

Cu, Zn, and Sn

Cu and Sn

Cu and Zn

45. Which element belong to 5d series?

46. Which of the following has the maximum number of unpaired d-electrons?

Fe²⁺

Cu⁺

Ni³⁺

47. Melting in presence of coke and silica is called

Caking

Cooking

Smelting

Roasting

48. Cuprous ore among the following is

Azurite

Chalcopyrites

Cuprite

Malachite

49. The elements in which d or f orbitals are in the process of completion are

Outer transition elements

Transition elements

Typical transition elements

Inner transition elements

50. The impurities associated with ores are called

Copper

Slag

Flux

Gangue

Page 3 of 5

51. Cr₂O₃ is obtained by heating at red heat

K₂CrO₄

PbCrO₄

ZnCrO₄

K₂CrO₇

52. F-block elements are called as

Inner transition elements

Transition elements

Normal elements

Typical series

53. Which has the largest radius?

Fe³⁺

Mn³⁺

CO³⁺

Cr³⁺

54. Group VIB of transition elements contains

Zn Cd Hg

Fe Ru Os

Mn Te Re

Cr Mo W

55. High purity copper metal is obtained by

Thermite reduction

Carbon reduction

Electrolytic reduction

Hydrogen reduction

56. Chromium is extracted generally from

Crocoite

Chromite ore

Chrome ochre

Chrometite

57. Which one of the following metal ions is colourless?

Zn²⁺

Ti²⁺

Cr²⁺

V²⁺

58. Sodium thiosulphate is used in photography because of its

Reducing behavior

Complexing behavior

Oxidizing behavior

Photochemical behavior

59. Transition metals show maximum oxidation no of:

60. Which of the following metal exhibits more than one oxidation?

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

Geometry of complex

Central metal ion

Ligand

co – ordination number

62. Transition metals mostly are

Diamagnetic

Both diamagnetic and paramagnetic

Neither diamagnetic nor paramagnetic

Paramagnetic

63. The colour transition metal complexes is due to

Ionization

Paramagnetic nature of transition elements

Loss of S-electrons

d-d transition of electrons

64. Transition elements are

Bad conductors

Insulation

None of these

Good conductors

65. Out of 110 known elements transition elements are

66. Bronze is an alloy of

90% Sn + 10% Cu

90% Cu + 10% Sn

None of these

90% Cu + 10% Fe

67. AgCl precipitate dissolves in NH₄OH due to the formation of

[Ag (NH₄)₂]Cl

[Ag (NH₃)₂]Cl

[Ag (NH₄)₄]Cl

[Ag (NH₃)₂]OH

68. When impurities are P and S, then furnace is lined

Amphoteric oxide

Acidic oxide

Neutral oxide

Basic oxide

69. Which of the following elements form all colourless compounds?

70. Hypo is trade name of sodium thio sulphate. It is used in photography for:

Reduction of negative

To make it negatively charged

Developing the negative

To make it negatively

71. Across the lanthanide series, the basicity of the lanthanide hydroxides

First increases and then decreases

First decreases and then increases

Decreases

Increases

72. One of the products of reaction between solid KMnO₄ and Conc. HCl is

MnO₂

A red liquid

HClO₄

A greenish yellow gas

73. Non-formation of menisus by Hg in presence of O₃ is due to the formation of

Mercuric oxide

Mercuric chloride

Mercurous oxide

Mercurous chloride

74. The lanthanides contraction is responsible for the fact that

Zr and Hf have about the same radius

Zr and Zn have the same oxidation state

Zr and Nb have similar oxidsation state

Zr and Y have about the same radius

75. Choose the correct answer of transition elements?

Transition elements exhibit inert pair effect

Transition elements have low melting points

Transition elements exhibit variable oxidation states

Transition elements do not have catalytic activity

Page 4 of 5

76. What is wrong about transition metals?

Paramagnetic

Form complexes

Diamagnetic

Shows variable oxidation state

77. Lanthanide contraction is due to the entrance of differentiating electron in

5s subshell

6d subshell

5f subshell

4f subshell

78. In transition metal complex metal action acts as

None of these

Lewis acid

Bronsted acid

Bronsted base

79. The purest form of iron is

Magnetite

Wrought iron

Cast iron

Hamaetite

80. What is the coordination number of platinum in tetraamine chloronitroplatinum (IV) sulphate?

81. Which of the following compounds gives red precipitate with AgNO₃?

NaBr

K₂CrO₄

NaNO₃

82. In control cooling water system, chromates, phosphates and silicates are added to water

To prevent scale formation

To inhibit corrosion

To remove odour

To increase remove foreign particle

83. Which of the following a non typical transition metal?

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

85. A common ore of manganese is

Magnetise

Bauxite

Cassiterite

Pyrolusite

86. Cr₂O²¯₇ ⇌ 2CrO²₄ is shifted to right in

It does not exist

A acidic medium

A neutral medium

A basic medium

87. The compound which gives oxygen on moderate heating is

Ferric oxide

Zinc oxide

Mercuric oxide

Aluminum oxide

88. The compounds with non-stoichiometric composition are called

Mixtures

Mixed elements

Interstitial compounds

Mixed compounds

89. Which one has highest paramagnetic property?

90. Rusting of iron is catalyzed by

O₂

H⁺

91. The transitional elements

Show variable oxidation

Do not form alloys

Show diamagnetism

Undergo inert pair effect

92. In an octahedral crystal field splitting, the number of orbitals pushed down in energy is

Zero

93. What is the charge on the coordination sphere in [Fe(CN₆)]⁴

Zero

-4

94. Of the following elements which does not belong to the lanthanide series

95. Which of the following is a carbonate are?

Malchite

Pyrolusite

Cassiterite

Diaspore

96. Group IB of transition elements contain

Noble gases

Coinage metals

Most reactive metals

f-black elements

97. Which element belongs to 4d series?

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

99. Ethylene diamine is

Polydetate ligand

Bidentate

Mono dentate legend

It is Lewis acid

100. Corrosion of iron can be prevented by coating the surface with

Any of the above

Page 5 of 5

101. An element in +3 oxidation state has the electronic configuration (Ar) 3d³. its atomic number is

102. The iron obtained from blast furnace is

Pig iron

Steel

Soft iron

Wrought ion

103. Which one is the electronic configuration of ²⁵M.

3d⁵, 4S¹

3d⁴, 4S²

3d⁶, 4S⁰

3d², 4S²P²

104. Misch mental is

An alloy of Aluminum

A mixture of chromium and lead chromate

An alloy of copper

An alloy of lanthanoid metals

105. Most transition elements show oxidation state

None

Only one

Constant

Variable

106. Co – ordination no silver is

107. The protection of steel by chrome plating is due to

Covering of steel surface

Anodic protection

Formation of alloy with iron

Cathodic protection

108. Transition metals from complex due to the participation partially filled

d – orbital

p – orbital

s – orbital

f – orbital

109. In the extraction of iron, slag is produced which is

CaSiO₃

MgSiO₃

FeSiO₃

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

It is less reactive than copper

An inert layer of iron oxide is deposited on it

All valence electrons of iron are consumed

A layer of sulphates is deposited on it

111. The electronic configuration of lanthanides is

[Xe]4f⁰¯¹⁴5d⁰ 6s²

[Xe]4f⁰¹¯⁴5d⁰¯¹ 6s¹

None of these

[Xe]4f⁰¯¹⁴5d⁰¯¹ 6s²

112. The number of unpaired electron in Fe²⁺ (Z = 26) are

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

M/3

M/2

M/5

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

Zinc

Copper

Titanium

Iron

115. Besides Zn and Cu, German silver contains the metal

116. The number of elements belong to lanthanides are

117. Copper is extracted from copper pyrites ore by heating in a blast furnace. The method is based on the principle that

Iron has lee affinity for oxygen than sulphur at high temperature

Sulphur has less affinity for oxygen at high temperature

Copper has less affinity for oxygen than sulphur at high temperature

Copper has more affinity for oxygen than sulphur at high temperature

118. The elements having ionization potential between 6.5 to 10 electron volts are

d-block elements

p-block elements

s-block elements

f-block elements

119. Stainless steel contains iron and carbon along with

Mn and Ni

Ni and Cr

Cr and Co

Co and Mn

120. The location of transition elements is in between

Lanthanides & actinides

S and P block elements

D and F block elements

Chalcogens and halogens

121. The total number of transition elements is

You Can Learn and Gain more Knowledge through our Online Quiz and Testing system Just Search your desired Preparation subject at Gotest.

ECAT Chemistry Environmental Chemistry Test Online
ECAT Chemistry Common Chemical Industries in Pakistan Test O...
ECAT Chemistry Macro-Molecules Test Online
ECAT Chemistry Carboxylic Acid Test Online
ECAT Chemistry Aldehydes and Ketones Test Online
ECAT Chemistry Alcohols Phenols And Ethers Test Online
ECAT Chemistry Alkyl Halides Test Online
ECAT Chemistry Aromatic Hydrocarbons Test Online
ECAT Chemistry Aliphatic Hydrocarbons Test Online
ECAT Chemistry Fundamental Principles of Organic Chemistry T...

Mustansar KhanLast Updated: April 19, 2025

Facebook Twitter Reddit WhatsApp Share via Email Print

ECAT Chemistry Transition Elements Test Online

Chemistry Transition Elements MCQS Online Test

ECAT Chemistry Transition Elements Chapter Online Test

ECAT Chemistry Transition Elements Test

Chemistry

You Might Also Like

Mustansar Khan

Leave a Reply Cancel reply

Chemistry Transition Elements MCQS Online Test

ECAT Chemistry Transition Elements Chapter Online Test

ECAT Chemistry Transition Elements Test

Chemistry

You Might Also Like

Mustansar Khan

Your Related

ECAT Mathematics Trigonometric Identities Online Test

ECAT Mathematics Matrices and Determinants Online Test

ECAT Chemistry Chemical Equilibrium Test Online

ECAT Chemistry Electrochemistry Online Test

ECAT English Reading Comprehension Test Online

ECAT English Antonyms Online Test

Leave a Reply Cancel reply