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The hydride ion H- is stronger base than its hydroxide ion OH- . Which of the following reaction will occur if sodium hydride (NaH) is dissolved in water?

(a) H- + H2→ no reaction

(b) H-(aq) + H2→ H2O

(c) H-(aq) + H2O(l) → OH- + H2

(d) None of these

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Best answer

The correct option is: (d) None of these

Explanation:

NaH + H2→ NaOH + H2

or  H-(aq) + H2O(l) → OH- + H2 ↑

Hydride ions will abstract proton from NaOH and hydrogen gas will evolve as a result of it.

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