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Which outcome occurs when palladium's d-orbitals facilitate hydrogen molecule dissociation?

A)Improved hydrogen storage densities
B)Increased mechanical crack propagation
C)Decreased electrical conductivity overall
D)Limited formation of stable metal hydrides

💡 Explanation

Improved storage occurs because palladium's d-orbitals splitting allows hydrogen’s sigma bond to break via orbital interaction, enabling atomic hydrogen absorption within the palladium lattice. Therefore, hydrogen concentration increases, rather than promoting crack propagation or limiting hydride formation under these catalytic conditions.

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