Which one of the following is non-reducting?

1.	Which one of the following is non-reducting?
Answer» `H_(2)S` `BaO_(2)` `H_(2)Se` `H_(2)O` Solution :All hydrides except `H_(2)O` acts as reducing AGENTS. The reducing nature INCREASES as the ATOMIC number of he central ATOM increases. This is due to weakening of M-H bonds as the bond length increases with increase in size of M atom.

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