A) \[\text{Be}{{\text{H}}_{\text{2}}}\text{ Ba}{{\text{H}}_{\text{2}}}\text{ Ca}{{\text{H}}_{\text{2}}}\]
B) \[\text{Ca}{{\text{H}}_{\text{2}}}\text{ Be}{{\text{H}}_{\text{2}}}\text{ Ba}{{\text{H}}_{\text{2}}}\]
C) \[\text{Be}{{\text{H}}_{\text{2}}}\text{ Ca}{{\text{H}}_{\text{2}}}\text{ Ba}{{\text{H}}_{\text{2}}}\]
D) \[\text{Ba}{{\text{H}}_{\text{2}}}\text{ Be}{{\text{H}}_{\text{2}}}\text{ Ca}{{\text{H}}_{\text{2}}}\]
Correct Answer: C
Solution :
[c] For 2nd group hydrides, on moving down the group metallic character of metals increases so ionic character of metal hydride increases. Hence the option [c] should be correct option.
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