Q9 / 75 · JEE Main 2025 (7 Apr Shift 2) · Chemistry
Match List-I with List-II
Choose the correct answer from the options given below :
Choose the correct answer from the options given below :
- A(A)-(III), (B)-(I), (C)-(II), (D)-(IV)
- Correct answerB(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)
Solution
Primary valency $=$ Oxidation state
Secondary valency $=$ Co-ordination number
$\begin{array}{|l|l|c|c|}\hline & Complex & \begin{array}{l} \text{Primary} \\ \text{valency}\end{array} & \text{Secondary} \\\hline (A) & {\left[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2\right] \mathrm{Cl}} & 3 & 6 \\\hline (B) & {\left[\mathrm{Pt}\left(\mathrm{NH}_3\right)_2 \mathrm{Cl}\left(\mathrm{NO}_2\right)\right]} & 2 & 4 \\\hline (C) & \mathrm{Hg}\left[\mathrm{Co}(\mathrm{SCN})_4\right] & 3 & 4 \\\hline (D) & {[\mathrm{Mg}(\mathrm{EDTA})]^{2-}} & 2 & 6 \\\hline\end{array}$
Secondary valency $=$ Co-ordination number
$\begin{array}{|l|l|c|c|}\hline & Complex & \begin{array}{l} \text{Primary} \\ \text{valency}\end{array} & \text{Secondary} \\\hline (A) & {\left[\mathrm{Co}(\mathrm{en})_2 \mathrm{Cl}_2\right] \mathrm{Cl}} & 3 & 6 \\\hline (B) & {\left[\mathrm{Pt}\left(\mathrm{NH}_3\right)_2 \mathrm{Cl}\left(\mathrm{NO}_2\right)\right]} & 2 & 4 \\\hline (C) & \mathrm{Hg}\left[\mathrm{Co}(\mathrm{SCN})_4\right] & 3 & 4 \\\hline (D) & {[\mathrm{Mg}(\mathrm{EDTA})]^{2-}} & 2 & 6 \\\hline\end{array}$
Hence, the correct answer is option: 'B'.