NEETChemistryCoordination Compounds
Match List - I with List - II. ( array lll array l List - I (Complex ion) array & array l List - II (Spin only magnetic moment in B.M.) array (A) [ Cr ( NH ₃ )₆ ]³⁺ & (I) 4.90 (B) [ NiCl ₄ ]²⁻ & (II) 3.87 (C) [ CoF ₆ ]³⁻ & (III) 0.0 (D) [ Ni ( CN )₄ ]²⁻ & (IV) 2.83 array ) Choose the correct answer from the options given below :
Options
- A(A)-(II), (B)-(III), (C)-(I), (D)-(IV)
- B(A)-(II), (B)-(IV), (C)-(I), (D)-(III)
- C(A)-(I), (B)-(IV), (C)-(II), (D)-(III)
- D(A)-(IV), (B)-(III), (C)-(I), (D)-(II)
Correct answer
B. (A)-(II), (B)-(IV), (C)-(I), (D)-(III)
Step-by-step solution
aligned & (A) [ Cr ( NH ₃ )₆ ]³⁺ & Cr ³⁺: 3 ~d ^3 & n =3 (unpaired electrons) & 3.87 B.M. (II) & aligned aligned & (B) [ NiCl ₄ ]²⁻ & Ni ²⁺: 3 ~d ^8 & n =2 & 2.83 B.M. (IV) & aligned aligned & (C) [ CoF ₆ ]³⁻ & Co ³⁺: 3 ~d ^6 & n =4 & 4.90 B.M. (I) aligned aligned & (D) [ Ni ( CN )₄ ]²⁻ & Ni ²⁺: 3 ~d ^8 & n =0 & =0 B.M. (III) & aligned SECTION -B