Most of the hydrides of group 2A elements exist in polymeric forms. True or false?

True

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False

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Solution

The correct option is B
False

Of the group 2A elements, only Be and Mg exist in polymeric forms. The other hydrides are ionic. Stabilities of the ionic hydrides are as : $C a H_{2}$ $>$ $S r H_{2}$ $>$ $B a H_{2}$

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