Chemistry-Transition Elements
NEET Chemistry Transition Elements Match the Following Question
Type: Match the Following-match the column-Hard-Class 12
Match Column-I with Column-II.
| Column-I | Column-II |
|---|---|
| (a) Lanthanoid contraction | (i) Oxidation of iodide to iodate |
| (b) Manganese oxidation state | (ii) Cu+ disproportionation |
| (c) High melting point | (iii) Similarity in properties of Zr and Hf |
| (d) Cu2+ stability | (iv) Transition metal properties |
A
a-iii, b-i, c-iv, d-ii
B
a-ii, b-iv, c-i, d-iii
C
a-iv, b-iii, c-ii, d-i
D
a-i, b-ii, c-iii, d-iv
Correct Answer
Option A
Detailed Explanation
The lanthanoid contraction leads to similar radii and properties between Zr and Hf (a-iii). Manganese exhibits various oxidation states (b-i), and high melting points are characteristic of transition metals (c-iv). The stability of Cu2+ is explained by its negative enthalpy change (d-ii).
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