Short Answer TypeReducing property. The order of increasing reducing character is:
H2O < MgH2 < NaH
Reason: NaH being an ionic hydride, therefore it is a powerful reducing agent. On the other hand, both MgH2 and H2O are covalent hydrides, but the bond dissociation energy of H2O is more than that of MgH2. Hence the reducing character increases in the order:
H2O < MgH2 < NaH
Long Answer TypeDescribe the industrial uses of hydrogen which depend on:
(i) the heat liberated when it burns,
(ii) its ability to react with vegetable oil in the presence of catalyst,
(iii) its ability to unite with nitrogen.
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