Justify that reaction : 2Na(s) +H_2(g) rarr 2NaH(s) is redox reaction

1.	Justify that reaction : 2Na(s) +H_2(g) rarr 2NaH(s) is redox reactions.
Answer» Solution :Sodium hydride is an IONIC compound and it EXISTS as `Na^(+)H^(-)`. `2Na +H_2 rarr 2Na^(+)H^(-)(s)` The REACTION may be split up into two half REACTIONS. `{:(""Na(s)rarrNa^(+)+e^(-)"]"xx2" OXIDATION"),(H_2(g)+2e^(-)rarr2H^(-)"Reduction"),(bar(2Na(s)+H_2(g)rarr2NaH"")):}` In this reaciton , Na is oxidised to `Na^(+)` to `2H^(-)` ion. Therefore , it is a redox reaction.

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