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NCERTCBSE CHEMISTRY CLASS 12 CHAPTERWISE MCQ QUESTIONS

Welcome to your Unit 8: The d- and f- Block Elements

1. 
What is the general electronic configuration of d-block elements?

2. 
Which of the following are d-block elements, but not regarded as transition elements?

3. 
Which of the following iswhy the atomic radii of the second and third transition series are almost same?

4. 
What is the colour of KMnO4?

5. 
What is the general electronic configuration of the lanthanides?

6. 
Which property of actinoids cannot be explained?

7. 
Which metal is used in an aircraft turbine engine?

8. 
Which metal is used as an electroplated protective coating?

9. 
Which of the following metal does not form a coloured salt?

10. 
. How many series’ of transition elements are present in the periodic table?

11. 
Which of the following element is not a transition element?

12. 
Why do transition elements form alloys so easily?

13. 
Which of the following has the highest atomic number?

14. 
Which of the following is not a property of a transition metal?

15. 
Which of the following is not a very hard metal?

16. 
What is the formula of hematite?

17. 
Which of the following is amphoteric?

18. 
What happens to the atomic size of the lanthanides with increase in atomic number?

19. 
What is the most common oxidation state of lanthanides?

20. 
Which is the most stable oxidation state of actinoids?

21. 
Actinoids are mostly attacked by which acid?

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