The hydride ion, H-, is a strong reducing agent because it readily donates its extra electron to another species, thus reducing it. This is due to the high electronegativity and small size of the hydrogen atom, which makes it highly polarizable and capable of donating its electron easily.

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The Hydride Ion

Question 86

Multiple Choice

The hydride ion

A) is a strong acid.
B) is a strong reducing agent.
C) is a strong oxidizing agent.
D) is neither an oxidant nor a reductant.
E) is found in molecules such as CHCl₃.

Correct Answer: