MCQ
Which of the following hydrides are ionic
- A$Ca{H_2}$
- B$Ba{H_2}$
- C$Sr{H_2}$
- ✓All of above
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$B _{2}, Li _{2}, C _{2}, C _{2}^{-}, O _{2}^{2-}, O _{2}^{+}$and $He _{2}^{+}$
(Given: Atomic mass of $\mathrm{C}=12, \mathrm{H}=1, \mathrm{O}=16 \mathrm{u}$ )
$(A)$ $NF _3$ molecule has a trigonal planar structure.
$(B)$ Bond length of $N _2$ is shorter than $O _2$.
$(C)$ Isoelectronic molecules or ions have identical bond order.
$(D)$ Dipole moment of $H _2 S$ is higher than that of water molecule.
Choose the correct answer from the option below: