The hydrogen ion, H-, is a stronger base than the hydroxide ion, OH- Which one of the following reactions will occur if sodium hydride (NaH) is dissolved in water ?
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a
H-aq + H2Ol → OH-aq + 2H2g
b
H-aq + H2Ol → H3O-aq
c
H-aq + H2Ol → OH-aq + 2H+aq + 2e
d
H-aq + H2Ol → No reaction
answer is A.
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Detailed Solution
H-aqbase 1 + H2Olacid 1 → OH-aqbase 2 + 2H2gacid 2 In this reaction H- acts as Bronsted base as it accepts one proton H+ from H2O and for H2.