The hydride ion, H- is a stronger base than hydroxide ion, OH-, which of the following reactions will occur if sodium hydride is dissolved in H2O?
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a
H−+H2O→ H3O+aq+e−
b
H−+H2O→ OHaq−+H2g
c
H++H−→ H2Ol
d
H−+H2O→ H3Oaq−
answer is B.
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Detailed Solution
NaH+H2O→ NaOHaq+H2g↑. The reason for this reaction is hydride ion is a very strong base and abstracts hydrogen ion from water and converts itself into hydrogen.