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Chemistry Transition Elements Online Mcqs Test

Mustansar KhanLast Updated: October 15, 2025

Start your preparation for Chemistry Transition Elements Online Mcqs Test. This online test contains important MCQs from past papers. Attempting this test will help you prepare for Annual Exams and Entry Tests. Read the questions carefully and select the correct option below to see your result.

Important Chemistry Transition Elements Question and Answer

Total Questions:	49
Time Allowed:	30 Minutes
Total Marks:	49
How to Attempt Test:	Please choose the right Option in MCQ-type question.
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Chemistry Transition Elements Practice Test Online With Explanation

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Page 1 of 2

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1. Which of the following is a third-row transition element?

Cobalt

Iron

Platinum

Vanadium

2. Which element does not show variable oxidation states?

Iron

Vanadium

Zinc

Copper

3. What is the oxidation state of chromium in Cr₂O₇²⁻?

4. Which of the following is not a general characteristic of transition metals?

Formation of colored ions

Low atomic weight

High melting point

Formation of complex compounds

5. Which property distinguishes transition metals from s-block elements?

High reactivity

Formation of basic oxides only

Solubility in water

Formation of colored ions

6. Which transition metal is used in photographic films?

Chromium

Iron

Nickel

Silver

7. Which of the following elements is most likely to exhibit +7 oxidation state?

Nickel

Iron

Chromium

Manganese

8. Which of the following elements shows the highest number of oxidation states?

Zinc

Manganese

Chromium

Copper

9. Which of the following is a characteristic property of transition elements?

They are all radioactive

They form colorless compounds

They are all non-metals

They have variable oxidation states

10. Which of the following shows the maximum number of unpaired d-electrons?

Zinc

Nickel

Chromium

Copper

11. Why do transition elements have high melting points?

Due to metallic bonding with delocalized electrons

Due to strong covalent bonding

Due to their large atomic size

They are reactive metals

12. Which transition metal is used in batteries and corrosion protection?

Zinc

Nickel

Cobalt

Iron

13. Which d-block element is not considered a transition element?

Zinc

Titanium

Scandium

Iron

14. What is the general electronic configuration of transition elements?

ns¹(n–1)d⁵

ns²np⁶

ns²np⁶nd¹–¹⁰

ns²(n–1)d¹–¹⁰

15. Which transition metal is essential in vitamin B12?

Zinc

Nickel

Cobalt

Iron

16. Which transition metal is used in the manufacture of filament in light bulbs?

Zinc

Tungsten

Copper

Iron

17. What type of bonds do transition metals often form?

Covalent only

Metallic and coordinate bonds

Hydrogen bonds

Ionic only

18. Which of the following transition metals forms green-colored compounds?

Cobalt(II)

Manganese

Chromium(III)

Iron(III)

19. What causes the hardness and strength of transition metals?

Weak intermolecular forces

Delocalized electrons in metallic bonds

Ionic bonding

Presence of s-orbitals

20. What is a common oxidation state of iron?

+2 and +3

–1

21. Which metal ion is present in the blue complex [Cu(H₂O)₄]²⁺?

Cu²⁺

Fe²⁺

Zn²⁺

Ni²⁺

22. Which of the following transition elements is used in currency coins?

Vanadium

Silver

Nickel

Zinc

23. Which of the following transition elements is used in stainless steel?

Vanadium

Nickel

Chromium

Cobalt

24. Why are transition metals able to form complex ions?

They have small nuclear charge

They are non-reactive

They have vacant d-orbitals

They cannot form covalent bonds

25. Which of the following is a soft transition metal?

Titanium

Chromium

Mercury

Iron

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26. Which of the following is a first-row transition element?

Gold

Cobalt

Lead

Barium

27. Which element shows the highest melting point among transition metals?

Copper

Silver

Tungsten

Iron

28. Why do transition metals act as good catalysts?

They are non-reactive

They form unstable products

They can change oxidation states

They provide surface for reaction

29. Which of the following is a magnetic property shown by many transition metals?

Superconductivity

Piezoelectricity

Paramagnetism

Diamagnetism

30. Which of the following elements is not considered a transition metal despite being in the d-block?

Scandium

Copper

Titanium

Zinc

31. Which metal is commonly used as a catalyst in hydrogenation reactions?

Silver

Nickel

Zinc

Iron

32. Why are transition metal compounds often colored?

Due to high electronegativity

Due to impurities

Due to resonance

Due to d-d electron transitions

33. Which of the following is known for forming organometallic compounds?

Nickel

Copper

Chromium

Iron

34. What causes paramagnetism in transition metals?

Completely filled orbitals

Presence of unpaired d-electrons

High atomic mass

Presence of paired electrons

35. Which of these transition metals is commonly used in electroplating?

Nickel

Potassium

Sodium

Calcium

36. Which of the following transition metals is liquid at room temperature?

Nickel

Chromium

Iron

Mercury

37. Which of the following is an interstitial compound formed by transition metals?

CaCO₃

NaCl

Fe₃C

H₂O

38. Which transition element is essential for oxygen transport in blood?

Chromium

Iron

Zinc

Copper

39. Which property of transition metals allows them to form colored complexes?

Large atomic size

Unpaired d-electrons

High ionization energy

Completely filled orbitals

40. Which of the following is a typical property of transition metals?

Low melting points

Lack of magnetism

Formation of complex ions

Poor conductivity

41. Which transition metal ion is responsible for the red color in blood?

Cobalt

Chromium

Copper

Iron

42. Transition metals show variable oxidation states because:

They have stable outer shells

They do not lose electrons easily

They have close energy levels of (n-1)d and ns orbitals

They have filled p-orbitals

43. Which transition element is widely used in making permanent magnets?

Zinc

Copper

Cobalt

Chromium

44. Which of the following transition metals is most commonly used in electrical wiring?

Iron

Zinc

Copper

Nickel

45. Which of the following is a d-block but not a transition element?

Zinc

Titanium

Chromium

Manganese

46. Why do transition metals have high density?

Loose packing of atoms

Low atomic number

High reactivity

Tightly packed atoms with high atomic mass

47. What is the shape of most transition metal complex ions?

Linear

Tetrahedral or square planar

Trigonal planar

Pyramidal

48. Transition metals form alloys easily because:

Their atoms are the same size

They are all radioactive

They are non-reactive

They have high electronegativity

49. Which transition element is used in galvanization?

Nickel

Iron

Copper

Zinc

How to Score High in Chemistry Transition Elements Online Mcqs Test?

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Mustansar KhanLast Updated: October 15, 2025

Important Chemistry Transition Elements Question and Answer

Chemistry Transition Elements Practice Test Online With Explanation

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