A) it can act as a base
B) it can act as an acid
C) it can act both as an acid and as a base
D) it can act neither as acid nor as base
Correct Answer: C
Solution :
: The dual role of water molecule may be represented by the equation, \[\underset{Aci{{d}_{1}}}{\mathop{{{H}_{2}}O}}\,+\underset{Bas{{e}_{2}}}{\mathop{{{H}_{2}}O}}\,\underset{Aci{{d}_{2}}}{\mathop{{{H}_{3}}{{O}^{+}}}}\,+\underset{Bas{{e}_{1}}}{\mathop{O{{H}^{-}}}}\,\]
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