d-Block and f-Block Elements Practice Questions
JEE · Chemistry · 1283 free MCQs with instant results and detailed explanations.
1283
Total
264
Easy
579
Medium
440
Hard
Start Practicing d-Block and f-Block Elements
Take a timed quiz or customize your practice session
Topics in d-Block and f-Block Elements
Properties
267
Transition Elements
264
Actinoids
259
Lanthanoids
255
Important Compounds of Transition Elements
238
Sample Questions from d-Block and f-Block Elements
Here are 10 sample questions. Start a quiz to get randomized questions with scoring.
Q1
Easy
Which of the following transition metals has the highest oxidation state in its compounds?
A.
Manganese
B.
Chromium
C.
Iron
D.
Titanium
Show Answer & Explanation
Correct Answer: A
Manganese can exhibit an oxidation state of +7 in compounds like KMnO4, which is the highest among the options.
Q2
Easy
Which of the following transition metals is known for its ability to form colored compounds?
A.
Copper
B.
Zinc
C.
Calcium
D.
Barium
Show Answer & Explanation
Correct Answer: A
Copper ions (Cu²⁺) are well-known for forming various colored compounds due to d-d electronic transitions.
Q3
Easy
What is the electron configuration of the element with atomic number 26, which is a transition metal?
A.
[Ar] 4s² 3d⁶
B.
[Ar] 4s² 3d⁴
C.
[Kr] 5s² 4d⁶
D.
[Ne] 3s² 3p⁶
Show Answer & Explanation
Correct Answer: A
The element with atomic number 26 is Iron (Fe). Its correct electron configuration is [Ar] 4s² 3d⁶.
Q4
Medium
What is the electron configuration of the titanium ion with a +3 charge (Ti³⁺)?
A.
[Ar] 3d²
B.
[Ar] 3d³
C.
[Ar] 3d⁴
D.
[Ar] 4s² 3d¹
Show Answer & Explanation
Correct Answer: A
Titanium (Ti) has an atomic number of 22, with the neutral atom having the configuration [Ar] 4s² 3d². Upon losing three electrons, two from 4s and one from 3d, Ti³⁺ becomes [Ar] 3d².
Q5
Medium
Which of the following transition metals is known for forming complexes with a +4 oxidation state that often displays color?
A.
Lead
B.
Titanium
C.
Zinc
D.
Nickel
Show Answer & Explanation
Correct Answer: B
Titanium in the +4 oxidation state (TiO₂, TiCl₄) can form colored complexes, while Lead and Zinc are less known for such properties in this state.
Q6
Medium
Which of the following transition metals exhibits the highest oxidation state in its compounds?
A.
Manganese
B.
Iron
C.
Chromium
D.
Vanadium
Show Answer & Explanation
Correct Answer: A
Manganese has the highest oxidation state of +7 in permanganate ion (MnO4-).
Q7
Medium
Which property is most commonly observed in transition metals due to the presence of unpaired d electrons?
A.
Inert pair effect
B.
Color in compounds
C.
High melting point
D.
Low density
Show Answer & Explanation
Correct Answer: B
Unpaired d electrons lead to d-d transitions, resulting in color in transition metal compounds.
Q8
Hard
Which of the following transition metals has a completely filled d-orbital in its elemental state?
A.
Zinc (Zn)
B.
Copper (Cu)
C.
Iron (Fe)
D.
Nickel (Ni)
Show Answer & Explanation
Correct Answer: A
Zinc has a configuration of [Ar] 3d10 4s2, meaning its d-orbital is completely filled, unlike the others.
Q9
Hard
Which transition metal complex is expected to exhibit the highest magnetic moment?
A.
[Fe(CN)6]3-
B.
[Cr(NH3)6]3+
C.
[Mn(H2O)6]2+
D.
[CoCl4]2-
Show Answer & Explanation
Correct Answer: C
[Mn(H2O)6]2+ has the highest number of unpaired electrons, leading to the highest magnetic moment.
Q10
Hard
Consider the following transition metal reactions. Which reaction involves a change in oxidation state and demonstrates disproportionation?
A.
2Cu+ -> Cu + Cu2+
B.
MnO4- + 8H+ + 5e- -> Mn2+ + 4H2O
C.
Ni2+ + 2e- -> Ni
D.
Fe3+ + e- -> Fe2+
Show Answer & Explanation
Correct Answer: A
The reaction 2Cu+ -> Cu + Cu2+ involves both oxidation and reduction of copper, showcasing disproportionation.
Showing 10 of 1283 questions. Start a quiz to practice all questions with scoring and timer.
Practice All 1283 Questions →More Chemistry Chapters
1
Atomic Structure
1549 Qs →
2
Chemical Bonding
1435 Qs →
3
Chemical and Ionic Equilibrium
1166 Qs →
4
Thermodynamics and Thermochemistry
1545 Qs →
5
Organic Chemistry
1437 Qs →
6
Coordination Chemistry
1435 Qs →
7
Some Basic Concepts of Chemistry
1581 Qs →
8
Chemical Bonding and Molecular Structure
1424 Qs →
Other JEE Subjects
d-Block and f-Block Elements — JEE Chemistry Practice Questions Online
This page contains 1283 practice MCQs for the chapter d-Block and f-Block Elements in JEE Chemistry. The questions are organized by difficulty — 264 easy, 579 medium, 440 hard — so you can choose the right level for your preparation.
Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 5 topics, giving you comprehensive coverage of the entire chapter.