Chemistry · Textbook solutions

Transition and Inner Transition Elements

Every solved example, exercise, and miscellaneous question, in the order the textbook teaches them. Plus every board question asked from this chapter. · 36 questions

8. Transition and Inner Transition Elements — worked examples

2 q

Solved Examples

Worked · 2

Solved Problem (p.172) $Calculate the spin only magnetic moment of divalent cation of a transition metal with atomic number 25.$
Solved Problem (p.184) $\mathrm{IE_4}$

Exercise

34 q

1. Choose the most correct option.

Practice · 12

Choose the most correct option.
Ex Q.1 (i) $Which one of the following is diamagnetic$
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Ex Q.1 (ii) $Most stable oxidation state of Titanium is$
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Ex Q.1 (iii) $Components of Nichrome alloy are are$
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Ex Q.1 (iv) $Most stable oxidation state of Ruthenium is$
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Ex Q.1 (v) $Stable oxidation states for chromium are$
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Ex Q.1 (vi) $\mathrm{Cu^{+1}}$
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Ex Q.1 (vii) $\mathrm{d^0s^0}$
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Ex Q.1 (viii) $Magnetic moment of a metal complex is 5.9 B.M. Number of unpaired electrons in the complex is$
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Ex Q.1 (ix) $In which of the following series all the elements are radioactive in nature$
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Ex Q.1 (x) $Which of the following sets of ions contain only paramagnetic ions$
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Ex Q.1 (xi) $Which actinoid, other than uranium, occur in significant amount naturally?$
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Ex Q.1 (xii) $The flux added during extraction of Iron from hematite are its?$
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2. Answer the following

Practice · 11

Answer the following
Ex Q.2 (i) $\mathrm{MnO_4^{2-}}$
Ex Q.2 (ii) $\mathrm{KMnO_4}$
Ex Q.2 (iii) $\mathrm{Sc^{3\oplus}}$
Ex Q.2 (iv) $Which steps are involved in manufacture of potassium dichromate from chromite ore ?$
Ex Q.2 (v) $\mathrm{KMnO_4 + H_2C_2O_4 + H_2SO_4 \longrightarrow MnSO_4 + K_2SO_4 + H_2O + O_2}$
Ex Q.2 (vi) $What are the stable oxidation states of plutonium, cerium, manganese, Europium ?$
Ex Q.2 (vii) $Write electronic configuration of chromium and copper.$
Ex Q.2 (viii) $+2$
Ex Q.2 (ix) $Explain with the help of balanced chemical equation, why the solution of Ce(IV) is prepared in acidic medium.$
Ex Q.2 (x) $What is meant by 'shielding of electrons' in an atom?$
Ex Q.2 (xi) $The atomic number of an element is 90. Is this element diamagnetic or paramagnetic?$

3. Answer the following

Practice · 11

Answer the following
Ex Q.3 (i) $Explain the trends in atomic radii of d block elements$
Ex Q.3 (ii) $Name different zones in the Blast furnace. Write the reactions taking place in them.$
Ex Q.3 (iii) $What are the differences between cast iron, wrought iron and steel ?$
Ex Q.3 (iv) $+2$
Ex Q.3 (v) $Give the similarities and differences in elements of 3d, 4d and 5d series.$
Ex Q.3 (vi) $Explain trends in ionisation enthalpies of d block elements.$
Ex Q.3 (vii) $What is meant by diamagnetic and paramagnetic metal ? Give one example of diamagnetic and paramagnetic transition metal and lanthanoid metal.$
Ex Q.3 (viii) $Why the ground-state electronic configurations of gadolinium and lawrentium are different than expected?$
Ex Q.3 (ix) $Write steps involved in metallurgical process$
Ex Q.3 (x) $+4$
Ex Q.3 (xi) $+2$

What the board has asked from this chapter

Questions per paper · 18 papers · 2014 to 2026

June 2026

4 q

Select and write the correct answers for the following multiple choice type of questions :
Q.1.vi $-$
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Actinoids
Q. 9 $(a) Write general electronic configuration of 3d series elements. (b) Write any two points which explain about the colour of a transition metal ion.$
Position in the Periodic Table and Electronic Configuration
Q. 25 $(a) Write chemical reactions taking place during extraction of iron in zone of reduction of the blast furnace. (b) Write observed electronic configuration of gadolinium. (Z=64)$
Extraction of Metals
Q. 30(ii) $Write properties of interstitial compounds.$
Common Properties of d-Block Elements

February 2026

5 q

Select and write the correct answer for the following multiple choice type of questions :
Q.1.ix $Amongst the following 3d-series elements, having highest value of first ionization enthalpy is _____.$
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Trends in Atomic Properties
Answer the following questions :
Q.2.iii $Write the name of radioactive element in lanthanide series.$
Lanthanoids
Q. 10 $Write two similarities and two differences between lanthanoids and actinoids.$
Actinoids
Q. 19(i) $\mathrm{Ti^{3+}}$
Position in the Periodic Table and Electronic Configuration
Q. 22(ii) $\mathrm{Sc^{3+}}$
Common Properties of d-Block Elements

July 2025

4 q

Select and write the correct answer for the following multiple choice type of questions :
Q.1.viii $All radioactive elements are present in which of the following _____.$
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Actinoids
Q. 10 $\mathrm{K_2Cr_2O_7 + KI + H_2SO_4 \longrightarrow K_2SO_4 + Cr_2(SO_4)_3 + H_2O + I_2}$
Compounds of Mn and Cr
Q. 20 $(a) What is Lanthanoid contraction? (b) Compounds of 'd' block elements are coloured in solid state as well as in an aqueous state. Explain.$
Lanthanoids
Q. 31(ii) $Write four properties of interstitial compounds of transition elements.$
Common Properties of d-Block Elements

February 2025

6 q

Q. 15(i) $Write the general electronic configuration of 3d series.$
Position in the Periodic Table and Electronic Configuration
Q.21.a $\mathrm{M^{2+}}$
Trends in Atomic Properties
Answer the following questions :
Q.2.viii $Write the names of the metal elements in brass alloy.$
Common Properties of d-Block Elements
Q.21.b $Write condensed electronic configuration of Gadolinium [Z = 64].$
Lanthanoids
Q.5 $Write the differences between lanthanoids and actinoids.$
Actinoids
Q.22.a $\mathrm{Fe_2O_3}$
Extraction of Metals

July 2024

5 q

Select and write the correct answer for the following multiple choice type of questions :
Q.1.ii $\mathrm{Fe^{2+}}$
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Common Properties of d-Block Elements
Answer the following questions :
Q.2.v $\mathrm{Zn^{2+}}$
Position in the Periodic Table and Electronic Configuration
Q. 11 $Define : (a) Pyrometallurgy. (b) Roasting.$
Extraction of Metals
Q. 21 $Write the conditions of colour of transition metal ion. Write the alloy used in Fischer Tropsch process.$
Common Properties of d-Block Elements
Q. 28(iii) $Write the uses of bronze alloy.$
Common Properties of d-Block Elements

February 2024

5 q

Select and write the correct answer for the following multiple choice type of questions :
Q.1.i $\mathrm{Cr^{3+}}$
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Trends in Atomic Properties
Answer the following questions :
Q.2.v $\mathrm{Ti^{4+}}$
Trends in Atomic Properties
Q. 13 $\mathrm{K_2Cr_2O_7}$
Compounds of Mn and Cr
Q. 26 $Write the preparation of potassium dichromate from chromite ore.$
Compounds of Mn and Cr
Q. 28(iii) $Write the atomic numbers of transuranium elements.$
Actinoids

March 2023

4 q

Select and write the correct answer for the following multiple choice type of questions:
Q.1.iv $\mathrm{Mn^{2+}}$
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Trends in Atomic Properties
Q.3 $Distinguish between lanthanides and actinides.$
Actinoids
Q. 20 $What are interstitial compounds? Give the classification of alloys with examples.$
Common Properties of d-Block Elements
Q. 27(ii) $Give electronic configuration of Gd (Z = 64).$
Lanthanoids

March 2022

2 q

Q.1.iv $Which of the following transition element shows maximum oxidation state?$
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Oxidation States of the First Transition Series
Q.22 $25$
Trends in Atomic Properties

February 2020

1 q

Q.17 $Write the general electronic configuration of lanthanoids. Why are most of the compounds of transition metals coloured?$
Lanthanoids

2019

3 q

Q.2 $Oxidation states of scandium are ______.$
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Oxidation States of the First Transition Series
Q.29.B $24$
Trends in Atomic Properties
Q.3 $In Van Arkel method for refining zirconium or titanium, the halogen used is ______.$
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Extraction of Metals

March 2018

2 q

Q.8.i $Explain what is lanthanide contraction?$
Lanthanoids
Q.3.viii $\text{Zr}$
Extraction of Metals

March 2017

2 q

Q.6.v $Write the factors which are related to the colour of transition metal ions.$
Trends in Atomic Properties
Q.7.iii $+ 2$
Oxidation States of the First Transition Series

March 2016

1 q

Q.6.i $What are f-block elements? Distinguish between lanthanoids and actinoids.$
Actinoids

March 2015

2 q

Q.7.iii $What are lanthanoids? Explain its effects.$
Lanthanoids
Q.4.i $Write the reactions involved in the zone of reduction in blast furnace during extraction of iron.$
Extraction of Metals

March 2014

2 q

Q.6.iii $\text{Mn}^{2 +}$
Oxidation States of the First Transition Series
Q.7.vii $What are lanthanoids? What is the position of actinoids in periodic table?$
Lanthanoids

The 10 board questions to practise first

The questions the board asked again come first, most asked first. Each one says how often and when.

Question 1
Asked 4 times: Mar 2016, Mar 2023, Feb 2025, Feb 2026
Q. 10 $Write two similarities and two differences between lanthanoids and actinoids.$
Question 2
Asked 3 times: Mar 2018, Feb 2024, Jul 2025
Q. 20 $(a) What is Lanthanoid contraction? (b) Compounds of 'd' block elements are coloured in solid state as well as in an aqueous state. Explain.$
Question 3
Asked 2 times: Jul 2025, Jun 2026
Q. 30(ii) $Write properties of interstitial compounds.$
Question 4
Asked 2 times: Mar 2015, Jun 2026
Q. 25 $(a) Write chemical reactions taking place during extraction of iron in zone of reduction of the blast furnace. (b) Write observed electronic configuration of gadolinium. (Z=64)$
Question 5
Asked 2 times: Feb 2025, Jun 2026
Q. 9 $(a) Write general electronic configuration of 3d series elements. (b) Write any two points which explain about the colour of a transition metal ion.$
Question 6
Asked 2 times: Mar 2023, Feb 2025
Q.21.b $Write condensed electronic configuration of Gadolinium [Z = 64].$
Question 7
Asked 2 times: Mar 2022, Mar 2023
Select and write the correct answer for the following multiple choice type of questions:
Q.1.iv $\mathrm{Mn^{2+}}$
Tap an option to check your answer.
Question 8
Asked 2 times: Mar 2014, Mar 2017
Q.7.iii $+ 2$
Question 9
This type asked 5 times: Mar 2019, Feb 2024, Jul 2024, Feb 2025, Feb 2026. This one: Feb 2026
Q. 19(i) $\mathrm{Ti^{3+}}$
Question 10
This type asked 5 times: Mar 2017, Feb 2020, Feb 2024, Jul 2024, Feb 2026. This one: Feb 2026
Q. 22(ii) $\mathrm{Sc^{3+}}$

8. Transition and Inner Transition Elements — worked examples

Solved Examples

Exercise

1. Choose the most correct option.

2. Answer the following

3. Answer the following

What the board has asked from this chapter

June 2026

February 2026

July 2025

February 2025

July 2024

February 2024

March 2023

March 2022

February 2020

2019

March 2018

March 2017

March 2016

March 2015

March 2014

The 10 board questions to practise first

Question 1

Question 2

Question 3

Question 4

Question 5

Question 6

Question 7

Question 8

Question 9

Question 10