2. Give the number of geometric isomers for an octahedral compound MA₂B₂C₂. (Note: A, B, and C are monodentate ligands)(A)1(B)2(C)3(D)4(E)5

1. Which breakthrough was awarded the Nobel Prize in Chemistry in 2023?(A)Development of ultra-high-resolution electron microscopy for biological systems(B)Discovery and synthesis of quantum dots(C)Discovery of a new class of antibiotics targeting antibiotic-resistant bacteria(D)Advancements in computational chemistry for drug discovery(E)Creation of sustainable and efficient hydrogen production methods

2. Give the number of geometric isomers for an octahedral compound MA₂B₂C₂. (Note: A, B, and C are monodentate ligands)
(A)1
(B)2
(C)3
(D)4

(E)5

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