Which of the following is not an oxidation-reduction reaction? (pictured below)

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asked Dec 14, 2019 48.0k views

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Thara · Answer 1 · 2019-12-20T15:06:03+0000

Answer is: the third reaction.
Elements in this chemical reaction do not change their oxidation number. Hydrogen has oxydation number +1, sulfur oxidation number is +6, oxygen has oxidation number -2 and barium has +2 on both sides of chemical reaction. In other reactions elements change their oxidation numbers.

Which of the following is not an oxidation-reduction reaction? (pictured below)

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