CBSE Class 12 Chemistry The D Block Elements Worksheet

Access the latest CBSE Class 12 Chemistry The D Block Elements Worksheet. We have provided free printable Class 12 Chemistry worksheets in PDF format, specifically designed for Unit 4 The d- and f-Block Elements. These practice sets are prepared by expert teachers following the 2025-26 syllabus and exam patterns issued by CBSE, NCERT, and KVS.

Unit 4 The d- and f-Block Elements Chemistry Practice Worksheet for Class 12

Students should use these Class 12 Chemistry chapter-wise worksheets for daily practice to improve their conceptual understanding. This detailed test papers include important questions and solutions for Unit 4 The d- and f-Block Elements, to help you prepare for school tests and final examination. Regular practice of these Class 12 Chemistry questions will help improve your problem-solving speed and exam accuracy for the 2026 session.

Download Class 12 Chemistry Unit 4 The d- and f-Block Elements Worksheet PDF

d- BLOCK ELEMENTS
 
1 In which of the following pairs, both the ions are coloured in aqueous solutions?
(a) Sc3+, Ti
(b) Sc3+, Co2+
(c) Ni2+, Cu+
(d) Ni2+, Ti3+
[Atomic no of Sc = 21, Ti = 22, Ni = 28, Co = 27, Cu = 29]
 
2 Which of the following is most stable in aqueous solution?
(a) Mn2+
(b) Cr3+
(c) V3+
(d) Ti3+
 
3 Magnetic moment of 2.83 BM is given by which of the following ion?
(a) Ti3+
(b) Ni2+
(c) Cr3+
(d) Mn2+
 
4 KMnO4 is not acidified by HCl instead of H2SO4 because
(a) H2 SO4 is stronger acid than HCl
(b) HCl is oxidised to Cl2 by KMnO4
(c) H2SO4 is dibasic acid
(d) rate is faster in presence of H2SO4
 
5 Out of Mn2O7 V2O3, V2O5, CrO, Cr2O3, the basic oxides are
(a) Mn2O7, V2O3
(b) V2O3, V2O5
(c) V2O5, CrO
(d) V2O3 and CrO
 
6 The electronic configuration of Cu(II) is 3d9 whereas that of Cu(I) is 3d10. Which of the following statement is correct?
(a) Cu(II) is more stable
(b) Cu(II) is less stable
(c) Cu(I) and Cu(II) are equally stable
(d) Stability of Cu(I) and Cu(II) depends on nature of copper salts
 
7 Which of the following compounds will be coloured in solid state?
(a) Ag2SO4
(b) CuF2
(c) ZnF2
(d) Cu2Cl2
 
8 Anomalous electronic configuration in the 3d series are of
(a) Cr and Fe
(b) Cu and Zn
(c) Fe and Cu
(d) Cr and Cu
 
9 Which of the following are d-block elements but not regarded as transition elements?
(a) Cu, Ag, Au
(b) Zn, Cd, Hg
(c) Fe, Co, Ni
(d) Ru, Rh, Pd
 
10 Transition elements form alloys easily because they have
(a) Same atomic number
(b) Same electronic configuration
(c) Nearly same atomic size
(d) None of the above
 
11 Electronic configuration of a transition element X in +3 oxidation state is [Ar] 3d5.What is its atomic number?
(a) 25   (b) 26   (c) 27   (d) 24
 
12 Lanthanide contraction is due to increase in
(a) Shielding by 4 f electrons
(b) Atomic number
(c) Effective nuclear charge
(d) Size of 4 f-orbital
 
13 A transition element that has no electron in the ns orbital belongs to the ____.
a) 1st transition series
b) 2nd transition series
c) 3rd transition series
d) 4th transition series
 
14 The highest oxidation state shown by the transition element in 5d series is ____.
a) +4
b) +5
c) +8
d) +7
 
15 Copper has a positive Cu2+/Cu reduction potential value because _________________ .
a) high enthalpy of ionization
b) low enthalpy of hydration
c) high enthalpy of hydration
d) option (A) and (B)
 
FILL IN THE BLANKS
 
1. Transition metals is associated with higher catalytic activity due to____________oxidation state.
 
2. There are ________ unpaired ‘d’ electrons in present Cr2+ ion.
 
3. Element in the 4d series that is not regarded a transition metal is ________.
 
4. Transition metal compounds impart characteristic color to the flame due to_______.
 
5. Element in the 3d series with highest oxidation state is_________.
 
6. Transition metals form complexes due to__________
 
7. Zr and Hf have similar sizes due to_________.
 
8. Os can show highest oxidation state of _______.
 
9. In _______elements the 4f orbitals are progressively filled.
 
10. Lanthanoid that is commonly used as analytical reagent is ______.
 
MATCH THE FOLLOWING

CBSE Class 12 Chemistry The D Block Elements Worksheet 1

~ Class 12 Chemistry (Old Chapters)
CBSE Class 12 Chemistry Chemistry in Everyday Life Question Bank
CBSE Class 12 Chemistry Chemistry in Everyday Life Worksheet Set A
CBSE Class 12 Chemistry Chemistry in Everyday Life Worksheet Set B
CBSE Class 12 Chemistry General principles and Processes of isolation of elements Question Bank
CBSE Class 12 Chemistry General Principles and Processes of Isolation of Elements Worksheet Set A
CBSE Class 12 Chemistry General Principles And Processes of Isolation of Elements Worksheet Set B
CBSE Class 12 Chemistry General Principles And Processes of Isolation of Elements Worksheet Set C
CBSE Class 12 Chemistry General Principles And Processes of Isolation of Elements Worksheet Set D
CBSE Class 12 Chemistry General Principles And Processes of Isolation of Elements Worksheet Set E
CBSE Class 12 Chemistry In Everyday Life Question Bank
CBSE Class 12 Chemistry In Everyday Life Worksheet Set A
CBSE Class 12 Chemistry Polymers Worksheet Set A
CBSE Class 12 Chemistry Polymers Worksheet Set B
CBSE Class 12 Chemistry Polymers Worksheet Set C
CBSE Class 12 Chemistry Polymers Worksheet Set D
CBSE Class 12 Chemistry Solid State Question Bank
CBSE Class 12 Chemistry Solid State Question Bank Set A
CBSE Class 12 Chemistry Solid State Question Bank Set B
CBSE Class 12 Chemistry Solid State Worksheet
CBSE Class 12 Chemistry Surface Chemistry Question Bank
CBSE Class 12 Chemistry Surface Chemistry Question Bank Set A
CBSE Class 12 Chemistry Surface Chemistry Question Bank Set B
CBSE Class 12 Chemistry Surface Chemistry Worksheet Set A
CBSE Class 12 Chemistry Surface Chemistry Worksheet Set B
CBSE Class 12 Chemistry Surface Chemistry Worksheet Set C
CBSE Class 12 Chemistry Surface Chemistry Worksheet Set D
CBSE Class 12 Chemistry Surface Chemistry Worksheet Set E
CBSE Class 12 Chemistry The P Block Elements Question Bank
CBSE Class 12 Chemistry The P Block Elements Question Bank Set A
CBSE Class 12 Chemistry The P Block Elements Question Bank Set B
CBSE Class 12 Chemistry The p Block Elements Worksheet Set A
CBSE Class 12 Chemistry The p Block Elements Worksheet Set B
CBSE Class 12 Chemistry The p Block Elements Worksheet Set C
CBSE Class 12 Chemistry The P Block Elements Worksheet Set E
CBSE Class 12 Chemistry The P Block Elements Worksheet Set F
CBSE Class 12 Chemistry The Solid State Worksheet Set A
CBSE Class 12 Chemistry The Solid State Worksheet Set B

Unit 4 The d- and f-Block Elements CBSE Class 12 Chemistry Worksheet

Students can use the Unit 4 The d- and f-Block Elements practice sheet provided above to prepare for their upcoming school tests. This solved questions and answers follow the latest CBSE syllabus for Class 12 Chemistry. You can easily download the PDF format and solve these questions every day to improve your marks. Our expert teachers have made these from the most important topics that are always asked in your exams to help you get more marks in exams.

NCERT Based Questions and Solutions for Unit 4 The d- and f-Block Elements

Our expert team has used the official NCERT book for Class 12 Chemistry to create this practice material for students. After solving the questions our teachers have also suggested to study the NCERT solutions  which will help you to understand the best way to solve problems in Chemistry. You can get all this study material for free on studiestoday.com.

Extra Practice for Chemistry

To get the best results in Class 12, students should try the Chemistry MCQ Test for this chapter. We have also provided printable assignments for Class 12 Chemistry on our website. Regular practice will help you feel more confident and get higher marks in CBSE examinations.

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