The d-and f-Block Elements MCQ Questions for Class 12 Chemistry Chapter 8 with Answers

Find here the NCERT chapter-wise Multiple Choice Questions from Class 12 Chemistry book Chapter 8 The d-and f-Block Elements with Answers Pdf free download. This may assist you to understand and check your knowledge about the chapters. Students also can take a free test of the Multiple Choice Questions of The d-and f-Block Elements. Each question has four options followed by the right answer. These MCQ Questions are selected supported by the newest exam pattern as announced by CBSE.

MCQ Questions for Class 12 Chemistry With Answers

Q1. Whith metal has highest melting point?

(i) Pt
(ii) W
(iii) Pd
(iv) Au.

(ii) W

Q2. Which of the following is not an actinoid?

(i) Thorium
(ii) Californium
(iii) Uranium
(iv) Terbium

(iv) Terbium

Q3. Shape of d-orbital is

(i) spherical
(ii) dumb bell
(iii) double dumb bell
(iv) none of these

(iii) double dumb bell

Q4. Anomalous electronic configuration in the 3d series are of

(i) Cr and Fe
(ii) Cu and Zn
(iii) Fe and Cu
(iv) Cr and Cu

(iv) Cr and Cu

Q5. The chief ore of Hg is

(i) Pyrolusite
(ii) Bauxite
(iii) Galena
(iv) Cinnabar

(iv) Cinnabar

Q6. Which is the first man-made element?

(i) Sc
(ii) Os
(iii) Tc
(iv) Zr

(iii) Tc

Q7. Misch metal is an alloy of

(i) La
(ii) Th
(iii) Ac
(iv) none of these

(i) La

Q8. Lanthanoid contraction is due to increase in

(i) atomic number
(ii) effective nuclear charge
(iii) atomic radius
(iv) valence electrons

(ii) effective nuclear charge

Q9. Transistion elements form alloys easily because they have

(i) Same atomic number
(ii) Same electronic configuration
(iii) Nearly same atomic size
(iv) None of the above

(iii) Nearly same atomic size

Q10. Gun metal is

(i) Cu + Zn
(ii) Cu + Sn + Zn
(iii) Cu + Sn
(iv) Zn + Sn

(ii) Cu + Sn + Zn

Q11. Which transition metal has highest density?

(i) Os
(ii) Zn
(iii) Sc
(iv) La

(i) Os

Q12. Which of these elements will have highest density?

(i) Fe
(ii) Ni
(iii) Co
(iv) Cu

(iv) Cu

Q13. Which block of elements are known as transition elements?

(i) p-block
(ii) s-block
(iii) d-block
(iv) f-block

(iii) d-block

Q14. The composition of duralumin is

(i) Al 94%, Mg 6%
(ii) Cu 56%, Zn 24%, Ni 20%
(iii) Cu 95%, Al 5%
(iv) Al 95%, Cu 4%, Mn 0.5%, Mg 0.5%

(iv) Al 95%, Cu 4%, Mn 0.5%, Mg 0.5%

Q15. In KMnO4 oxidation number of Mn is

(i) +2
(ii) + 4
(iii) + 6
(iv) + 7

(iv) + 7

Q16. Which of the following oxidation state is common for all lanthanoids?

(i) +2
(ii) +3
(iii) +4
(iv) +5

(ii) +3

Q17. Which of the following is not an element of first transition series?

(i) Iron
(ii) Chromium
(iii) Magnesium
(iv) Nickel

(iii) Magnesium

Q18. The transition element with lowest atomic number is

(i) Scandium
(ii) Titanium
(iii) Zinc
(iv) Lanthanum.

(i) Scandium

Q19. There are 14 elements in actinoid series. Which of the following elements does not belong to this series?

(i) U
(ii) Np
(iii) Tm
(iv) Fm

(iii) Tm

Q20. Colour of transition metal ions are due to absorption of some wavelength. This results in

(i) d-s transition
(ii) s-s transition
(iii) s-t/transition
(iv) d-d transition

(iv) d-d transition

Q21. Rutile is an ore of

(i) Scandium
(ii) Titanium
(iii) Manganese
(iv) Chromium

(ii) Titanium

Q22. Ag+ ion is isoelectric with

(i) OP
(ii) Cd2+
(iii) Zn2+
(iv) Pd2+

(ii)

Q23. Which one is coloured?

(i) Cu2Cl2
(ii) [SC(H2O)6]3+
(iii) [Zn(H2O)6]2+
(iv) [Ti(H2O)6]3+

(iv)

Q24. Which one of the following is diamagnetic ion?

(i) Co2+
(ii) Ni2+
(iii) Cu2+
(iv) Zn2+

(iv)

Q25. Which of the following has the maximum number of unpaired electrons?

(i) Mg2+
(ii) Ti3+
(iii) V3+
(iv) Fe2+

(iv)

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MCQ Questions for Class 12 Chemistry with Answers

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