NEET 2019 · ChemistryPrevious Year Question
The manganate () and permanganate () ions are tetrahedral, due to:
Answer: (A) (a) the -bonding involves overlap of p-orbitals of oxygen with d-orbitals of manganese.. \textbf{Answer:} (a) The -bonding involves overlap of p-orbitals of oxygen with d-orbitals of manganese.
- A.(a) the -bonding involves overlap of p-orbitals of oxygen with d-orbitals of manganese.✓
- B.(b) there is no -bonding.
- C.(c) the -bonding involves overlap of p-orbitals of oxygen with p-orbitals of manganese.
- D.(d) the -bonding involves overlap of d-orbitals of oxygen with d-orbitals of manganese.
Correct Answer
(A) (a) the -bonding involves overlap of p-orbitals of oxygen with d-orbitals of manganese.
Solution & Explanation
\textbf{Answer:} (a) The -bonding involves overlap of p-orbitals of oxygen with d-orbitals of manganese. \textbf{Solution:} In both and the manganese is tetrahedrally surrounded by four oxygen atoms. The bonds have partial double-bond () character that comes from - bonding: the filled p-orbitals of oxygen overlap with the empty d-orbitals of manganese. This stabilises the tetrahedral arrangement. Hence option (a) is correct.
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