Pls tell ans of ques 14 .. ch is hydrogen

Solution:
(3) BeH2 is a covalent hydride not ionic hydride.
Ti being a transition metal forms metallic hydride which is non-stoichiometric
Mg (elements of Alkali, alkaline earth, and In and Tl) form intermediate hydrides.
B2H6 is a covalent (electron deficient) hydride

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