MCQ
Among $Ca{H_2},N{H_3},NaH$ and ${B_2}{H_6}$, which are covalent hydride
- ✓$N{H_3}\;{\rm{and}}\;{{\rm{B}}_{\rm{2}}}{H_6}$
- B$NaH\;{\rm{and}}\;{\rm{Ca}}{{\rm{H}}_{\rm{2}}}$
- C$NaH$ and $N{H_3}$
- D$Ca{H_2}$ and ${B_2}{H_6}$
✓
Answer
Correct option: A.
$N{H_3}\;{\rm{and}}\;{{\rm{B}}_{\rm{2}}}{H_6}$
(a) Among these, $NaH$ and $Ca{H_2}$ are ionic hydrides and ${B_2}{H_6}$ and $N{H_3}$ are covalent hydrides.
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