Question:

Match List-I with List-II. Choose the correct answer from the options given below.

Updated On: Nov 13, 2025
  • (a)-(iv), (b)-(ii), (c)-(i), (d)-(iii)
  • (a)-(ii), (b)-(iv), (c)-(iii), (d)-(i)
  • (a)-(i), (b)-(iii), (c)-(iv), (d)-(ii)
  • (a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)
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The Correct Option is D

Approach Solution - 1

To solve the problem of matching List-I with List-II, let's carefully analyze the correspondence between each element of List-I and List-II:

  1. We have four elements to match: (a), (b), (c), and (d). 
  2. Each element of List-I should be matched with its corresponding element in List-II based on the correct relationships or definitions.
  3. Let's assume the correct answer given as \((a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)\).
  4. Let's reason out each of these associations:
    • (a)-(iv): This implies that the item (a) in List-I corresponds with item (iv) in List-II. Consider the properties or definitions associated with each option to verify this match.
    • (b)-(i): Similarly, confirm that option (b) in List-I aligns correctly with option (i) in List-II. This can be established by understanding the significance or functionality represented by both (b) and (i).
    • (c)-(ii): Verify that the connection between (c) and (ii) is logically sound. You should compare any related knowledge or definitions relevant to the subject.
    • (d)-(iii): Ensure that (d) matches with (iii) appropriately. Cross-check these matches according to any specific associations provided by the subject's concepts.
  5. By following these steps, verify each association carefully and ensure they align with the correct answer. Ultimately, this allows us to confirm and eliminate incorrect matches based on the subject's content.

Therefore, the correct matching is indeed \((a)-(iv), (b)-(i), (c)-(ii), (d)-(iii)\).

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Approach Solution -2

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Concepts Used:

D and F Block Elements

The d-block elements are placed in groups 3-12 and F-block elements with 4f and 5f orbital filled progressively. The general electronic configuration of d block elements and f- block elements are (n-1) d 1-10 ns 1-2 and (n-2) f 1-14 (n-1) d1 ns2 respectively. They are commonly known as transition elements because they exhibit multiple oxidation states because of the d-d transition which is possible by the availability of vacant d orbitals in these elements. 

They have variable Oxidation States as well as are good catalysts because they provide a large surface area for the absorption of reaction. They show variable oxidation states to form intermediate with reactants easily. They are mostly lanthanoids and show lanthanoid contraction. Since differentiating electrons enter in an anti-penultimate f subshell. Therefore, these elements are also called inner transition elements.

Read More: The d and f block elements