1.

Hydrogen acts as an oxidising agent in the reaction with `:`A. BromineB. CalciumC. NitrogenD. Sulphur.

Answer» Correct Answer - B
`Ca+overset((0))(H_(2))toCaoverset((-1))H_(2)`
In this reaction `H_(2)` is an oxidising agent because its oxidation number decreases from zero to -1.


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