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MHT CET202310 May 2023Evening ShiftChemistryRedox ReactionsActual

Identify the elements undergoing reduction and oxidation respectively in the following redox reaction. 3 H ₃ AsO _ 3( aq ) + BrO _ 3( aq ) ⁻ Br _ ( aq ) ⁻+3 H ₃ AsO ₄

Options

  1. AAs and O
  2. BBr and As
  3. CAs and Br
  4. DBr and O

Correct answer

B. Br and As

Step-by-step solution

The oxidation number of Br decreases from +5 . to -1 and that of As increasés from +3 to +5 . Hence, Br undergoes reduction and As undergoes oxidation.

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