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Properties of d-Block Elements, Class 12 Chemistry NCERT Solutions

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1. There will be total 20 MCQ in this test.
2. Please keep a pen and paper ready for rough work but keep your books away.
3. The test will consist of only objective type multiple choice questions requiring students to mouse-click their correct choice of the options against the related question number.
4. No negative marking for incorrect choice.
5. Please click on “Finish the Test” when you want to exit.
6. All the best – Happy Studying.

1. Which of the following point is not true about enthalpy of atomization regarding transition metals?

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Question 1 of 20

2. Lanthanoid contraction is observed in:

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Question 2 of 20

3. Which of the following ions is colourless?

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Question 3 of 20

4. Lanthanoid contraction is due to increase in:

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Question 4 of 20

5. Which of the following elements shows +7 oxidation state?

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Question 5 of 20

6. Which of the following fact is true ?

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Question 6 of 20

7. The oxidation state of Mn in Mn2O3 is:

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Question 7 of 20

8. Which transition element does not exhibit variable oxidation states?

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Question 8 of 20

9. Which of the following ion does not form coloured solutions?

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Question 9 of 20

10. Formation of coloured ions is possible when the metal contains:

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Question 10 of 20

11. In compounds of higher oxidation states in transition metals the bonds formed are mostly:

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Question 11 of 20

12. Among 3d transition series the ionization enthalpy:

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Question 12 of 20

13. d-block elements form coloured ions because:

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Question 13 of 20

14. The first ionization energy of the d-block elements are:

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Question 14 of 20

15. Which of the following ions should have highest magnetic moment?

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Question 15 of 20

16. Colour of [Ti(H2O)6]3+ ion is due to:

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Question 16 of 20

17. The density of elements of 3d series across a period:

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Question 17 of 20

18. Which of the following ion does not show violet colour?

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Question 18 of 20

19. The most common oxidation state of the first row transition metal is:

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Question 19 of 20

20. Which of the following factor does not affect the atomic size of d block elements?

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Question 20 of 20

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