Class 12 Chemistry Transition Metals Notes and Important Questions
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Notes for Class 12 Transition Metals (Chemistry) are shown above.
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Important Questions
An ammonia solution is added to the sulphate of coinage metal , the blue precipitates which appears dissolves in excess of reagent to form deep blue solution . Answer the followings:
Identify $A$, $B$ and $C$ with sequence of chemical reaction.
Predict the electronic configuration of this metal $A$.
Select the suitable methods for the purification of metal $A$.
What is meant by d-d electron transitions? List the characteristics of transition metals.
In which of the following vessel aqueous CuSO₄ solution can be safely stored?
Zn-vessel
Fe-vessel
Al-vessel
Ag-vessel
A deep blue complex is formed when conc. ammonium hydroxide is added to an aqueous solution of CuSO. Which of the following formulae represents the complex?
What is general electronic configuration of transition metal?
(n−1)s²pd⁶d¹⁰ns⁰2
(n−1)s²p⁶ns²np¹
(n−1)s²p⁶d⁵ns¹
(n−1)d¹–¹⁰ns¹–²
The figure shows the octahedral distortion of d-block orbital in the presence of ligand.
Why does octahedral distortion occur in the presence of ligand? Explain on the basis of CFT.
On the basis of the given distortion, how can you explain [Cu(H₂O)₆]²⁺ is blue colored complex?
Out of Fe³⁺ and Fe²⁺ which one is more stable? Explain on the basis of distortion seen in above figure
Why do such elements which give such splitting show good catalytic properties?
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Past Question Analysis
Historical exam-pattern data from past NEB question papers — not a prediction of future questions.
2
Question Items
1
Total Marks
1
Papers Appeared In
| Year | Question Items | Marks |
|---|---|---|
| 2082 | 2 | 1 |
Also appears in 6 model questions (not counted above — model sets aren't actual NEB exam history).
Transition Metals examines the characteristic properties and chemical behavior of transition elements. Students study oxidation states, complex ions, shapes of complexes, d-orbitals, crystal field theory, the origin of color in compounds and the catalytic properties of transition metals.
This page covers Transition Metals, chapter 7 of 22 in the Class 12 Chemistry syllabus set by the National Examination Board (NEB). 9 important questions for this chapter are available, each with a full solution.
For numerical and derivation-based chapters like this one, working through past NEB questions is usually more useful than re-reading notes alone — try solving each important question above before checking the solution, then compare your working step by step.