Primary valency = Oxidation state
Secondary valency = Co-ordination number
(A)(B)(C)(D)Complex[Co(en)2Cl2]Cl[Pt(NH3)2Cl(NO2)]Hg[Co(SCN)4][Mg(EDTA)]2−Primaryvalency3232Secondary6446
JEE Main 2025 — Chemistry Inorganic Chemistry
2025mcqmedium
Match List-I with List-II
Choose the correct answer from the options given below :
Official previous-year question
Held on 7 Apr 2025 · Verified 6 Jul 2026.
Options
- A
(A)-(III), (B)-(I), (C)-(II), (D)-(IV)
- B
(A)-(I), (B)-(IV), (C)-(II), (D)-(III)
- C
(A)-(I), (B)-(III), (C)-(II), (D)-(IV)
- D
(A)-(II), (B)-(III), (C)-(IV), (D)-(I)
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