1.

According to Lewis concept which one of the following is not a base        [MP PET/PMT 1988; Pb. CET 2003]

A.      \[O{{H}^{-}}\]   
B.      \[{{H}_{2}}O\]
C.      \[A{{g}^{+}}\]   
D.      \[N{{H}_{3}}\]
Answer» D.      \[N{{H}_{3}}\]


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