Which of the following hydrides is not ionic (A) \( \mathrm{CaH}_{2...

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Which of the following hydrides is not ionic
(A) \( \mathrm{CaH}_{2} \)
(B) \( \mathrm{BaH}_{2} \)
(C) \( \mathrm{SrH}_{2} \)
(D) \( \mathrm{BeH}_{2} \)
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