1.

Electronic configuration of \[{{H}^{-}}\] is             [CPMT 1985]

A.                 \[1{{s}^{0}}\]    
B.                 \[1{{s}^{1}}\]
C.                 \[1{{s}^{2}}\]    
D.                 \[1{{s}^{1}}\,2{{s}^{1}}\]
Answer» D.                 \[1{{s}^{1}}\,2{{s}^{1}}\]


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