A) \[NaCl\]
B) \[NaH\]
C) \[{{B}_{2}}{{H}_{6}}\]
D) \[KCl\]
Correct Answer: C
Solution :
From the electronic structure point of view the boranes are of great interest, since diborane \[({{B}_{2}}{{H}_{6}})\]is electron deficient i.e., there are not enough valence electrons to form the expected number of covalent bonds. For example, in diborane, there are only 12 electrons, three from each boron atom and six from hydrogen, while ethane possesses 14 such electrons.
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