48. Amongst the following which is not isolobal pairs (A) Mn(CO)₅ and CH₃ (B) Fe(CO)₄ and O (C) Co(CO)₃ and R₂Si (D) Mn(CO)₅ and RS

4. Both ZnS and CaF₂ have a face-centered cubic unit cell where the S²⁻ and Ca²⁺ ions are closest packed in each structure. Which of the following is true? (A) There are 4 tetrahedral holes empty in each structure. (B) In both compounds, one-half of the tetrahedral holes are filled. (C) In both compounds, all the tetrahedral holes are filled. (D) There are 8 Zn²⁺ ions and 4 F⁻ ions in the unit cell. (E) In ZnS, one-half of the tetrahedral holes are filled by Zn²⁺ ions, whereas in CaF₂ all the tetrahedral holes are filled with F⁻ ions.

48. Amongst the following which is not isolobal pairs
(A) Mn(CO)₅ and CH₃
(B) Fe(CO)₄ and O
(C) Co(CO)₃ and R₂Si
(D) Mn(CO)₅ and RS

相關試題

相關試卷

48. Amongst the following which is not isolo​bal pairs (A) Mn(CO)₅ and CH₃ (B) Fe(CO)₄ and O (C) Co(CO)₃ and R₂Si (D) Mn(CO)₅ and RS

相關試題

相關試卷

48. Amongst the following which is not isolobal pairs
(A) Mn(CO)₅ and CH₃
(B) Fe(CO)₄ and O
(C) Co(CO)₃ and R₂Si
(D) Mn(CO)₅ and RS