D And F Block Elements — NEET Previous Year Questions

How many NEET questions come from D And F Block Elements?

D And F Block Elements has contributed 31 questions to National Eligibility cum Entrance Test (UG) papers between 2016 and 2026 — an average of about 3 questions a year. That count is measured from EByAi’s bank of 46,150 NEET questions, not estimated from a syllabus. Every one of the 31 questions carries a written, step-by-step solution, and each is tagged to D And F Block Elements within Chemistry, so you can drill this chapter across every year at once instead of hunting through paper PDFs. Practising a chapter’s full PYQ history is the fastest way to learn the patterns examiners reuse.

Sample D And F Block Elements questions from real NEET papers

These are 5 real questions from the bank — exactly as asked, with the answer one tap away. All 31 D And F Block Elements questions (with full written solutions) are available in practice.

1. Question 1 · NEET 2026

   Although +3 oxidation state is most common in lanthanides, cerium still shows +4 oxidation state because:
   1. (A)After losing one more electron, it acquires $4f^{14}$ electronic configuration.
   2. (B)Its nearest inert gas is Radon.
   3. (C)Its atomic number is 61.
   4. (D)After losing one more electron, it acquires $4f^0$ electronic configuration.
   Show answerAnswer

   Answer: (D) After losing one more electron, it acquires $4f^0$ electronic configuration.

2. Question 2 · NEET 2024

   Which of the following sets of ions act as oxidising agents?
   1. (A)${\mathrm{Ce}}^{4+}$ and ${\mathrm{Tb}}^{4+}$
   2. (B)${\mathrm{La}}^{3+}$ and ${\mathrm{Lu}}^{3+}$
   3. (C)${\mathrm{Eu}}^{2+}$ and ${\mathrm{Yb}}^{2+}$
   4. (D)${\mathrm{Eu}}^{2+}$ and ${\mathrm{Tb}}^{4+}$
   Show answerAnswer

   Answer: (A) ${\mathrm{Ce}}^{4+}$ and ${\mathrm{Tb}}^{4+}$

3. Question 3 · NEET 2024

   The UV-visible absorption bands in the spectra of lanthanoid ions are 'X', probably because of the excitation of electrons involving 'Y'. The 'X' and 'Y', respectively, are :
   Narrow and d and f orbitals
   1. (A)Broad and f orbitals
   2. (B)Narrow and f orbitals
   3. (C)Broad and d and f orbitals
   4. (D)Narrow and d and f orbitals
   Show answerAnswer

   Answer: (B) Narrow and f orbitals

4. Question 4 · NEET 2023

   Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
   
   Assertion (A) : Ionisation enthalpies of early actinoids are lower than for early lanthanoids.
   
   Reason (R) : Electrons are entering 5f orbitals in actinoids which experience greater shielding from nuclear charge.
   
   In the light of the above statements, choose the correct answer from the options given below :
   1. (A)(A) is true but (R) is false.
   2. (B)(A) is false but (R) is true.
   3. (C)Both (A) and (R) are true and (R) is the correct explanation of (A).
   4. (D)Both (A) and (R) are true but (R) is not the correct explanation of (A).
   Show answerAnswer

   Answer: (C) Both (A) and (R) are true and (R) is the correct explanation of (A).

5. Question 5 · NEET 2023

   Given below are two statements : one is labelled as Assertion (A) and the other is labelled as Reason (R).
   
   Assertion (A) : Ionisation enthalpy increases along each series of the transition elements from left to right. However, small variations occur.
   
   Reason (R) : There is a corresponding increase in nuclear charge which accompanies the filling of electrons in the inner d-orbitals.
   
   In the light of the above statements, choose the most appropriate answer from the options given below :
   1. (A)(A) is correct but (R) is not correct.
   2. (B)(A) is not correct but (R) is correct.
   3. (C)Both (A) and (R) are correct and (R) is the correct explanation of (A).
   4. (D)Both (A) and (R) are correct but (R) is not the correct explanation of (A).
   Show answerAnswer

   Answer: (C) Both (A) and (R) are correct and (R) is the correct explanation of (A).

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