question_answer 1)

  Which of the following hydrides is electron deficient hydride? (a) \[{{B}_{2}}{{H}_{6}}\]                              (b)\[N{{H}_{3}}\]                             (c) \[{{H}_{2}}O\]                             (d) \[C{{H}_{4}}\]

Answer:

  (a)\[{{B}_{2}}{{H}_{6}}\]is an electron deficient compound as it has 12electrons. Each boron atom is linked with three hydrogen atoms. No electron is available to form a bond between two boron atoms.