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Electronic configuration of H- is:
(1) 1s0
(2) 1s1
(3)1s2
(d) 1s1, 2s1
Ans: 1s2
In covalency : (1) Electrons are transferred (2) Electrons are equally shared (3) The electron of one atom are shared between two atoms (4) None of the above Ans: E
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