7. Below is the molecular structure of an efficient catalyst for the deconstruction of polyethylene (PE), what is the oxidation state of Ir?(A)0(B)+1(C)+2(D)+3(E)+5

10. Which property distinguishes inorganic nanoparticles from their bulk counterparts?(A)Increased solubility in polar solvents(B)Reduced surface area to volume ratio(C)Enhanced reactivity due to decreased surface area(D)Altered optical, electronic, or magnetic properties at the nanoscale(E)Lower sensitivity to environmental factors compared to bulk materials

7. Below is the molecular structure of an efficient catalyst for the deconstruction of polyethylene (PE), what is the oxidation state of Ir?

(A)0

(B)+1

(C)+2

(D)+3

(E)+5

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