Question

Match the Coordination compounds given in Column I with their characteristic features listed in Column II.

• A. W - S, X - P, Y - Q, Z - R
• B. W - S, X - R, Y - Q, Z - P
• C. W - R, X - Q, Y - S, Z - P
• D. W - P, X - Q, Y - R, Z - S

Hint:

In coordination 6256d60dc6a8bca7110c99d1, the oxidation state and electronic configuration are crucial in determining the magnetic properties of the complex. Paramagnetic complexes have unpaired electrons, while diamagnetic complexes do not.

Answer 1

The Correct Option is D

Let's match the compounds with their corresponding features: 1. W. [Co(NH_3)_6]Cl_3: This is a cobalt complex where the oxidation state of cobalt is +3, and it has a d^6 configuration. The magnetic moment is 5.92 BM, indicating that it is paramagnetic due to unpaired electrons. Hence, the corresponding feature is P. 2. X. K_4[Mn(CN)_6]: Manganese in this complex is in the +3 oxidation state, and it has a d^3 configuration. The magnetic moment is 3.87 BM, which corresponds to the presence of unpaired electrons, and the complex is paramagneti(C) This matches feature Q. 3. Y. [CrCl_3(py)_3]: Chromium in this complex is in the +3 oxidation state with a d^3 configuration. The complex is diamagnetic, as indicated by the magnetic moment of 0 BM, which suggests that all electrons are paire(D) Thus, this matches feature R. 4. Z. Cs[FeCl_4]: Iron here is in the +2 oxidation state with a d^6 configuration. The magnetic moment is 1.732 BM, suggesting that the complex is weakly paramagnetic, with some unpaired electrons. This corresponds to feature S. Thus, the correct matching is: - W = P - X = Q - Y = R - Z = S Therefore, the correct answer is (D)