Which of the following changes requires a reducing agent ?A. `H_(3)AsO_(3)rarrHAsO_(4)^(2-)`B. `BrO_(3)^(ө)rarrBrO^(ө)`C. `CrO_(4)^(2-)rarrCr_(2)O_(7)^(2-)`D. `Al(OH)_(3)rarr[Al[OH)_(4)]^(ө)`

Which of the following changes requires a reducing agent ?A. `H_(3)AsO

1.	Which of the following changes requires a reducing agent ?A. `H_(3)AsO_(3)rarrHAsO_(4)^(2-)`B. `BrO_(3)^(ө)rarrBrO^(ө)`C. `CrO_(4)^(2-)rarrCr_(2)O_(7)^(2-)`D. `Al(OH)_(3)rarr[Al[OH)_(4)]^(ө)`
Answer» Correct Answer - B `4e^(-)+BrO_(3)^(ө)rarrBrO^(ө)` `x-6= -1, x-2=-1` `x=5, x=+1` The reduction undergoes reduction, i.e., it acts as oxidising agent, so it requires a reducing agent.

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Which of the following changes requires a reducing agent ?A. `H_(3)AsO_(3)rarrHAsO_(4)^(2-)`B. `BrO_(3)^(ө)rarrBrO^(ө)`C. `CrO_(4)^(2-)rarrCr_(2)O_(7)^(2-)`D. `Al(OH)_(3)rarr[Al[OH)_(4)]^(ө)`

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