Question

A solution is prepared by reacting \(500\) mL of \(0.2\) M \(\mathrm{KMnO_4}\) with \(500\) mL of \(0.2\) M \(\mathrm{KBr}\) solution in basic medium. What are the concentrations of \(\mathrm{KBr}\) and \(\mathrm{KBrO_3}\) respectively in the resultant solution?

• A. \(0.025\) M, \(0.025\) M
• B. \(0.05\) M, \(0.025\) M
• C. \(0.05\) M, \(0.05\) M
• D. \(0.025\) M, \(0.05\) M

Hint:

Always balance the redox reaction first, calculate the limiting reagent, and then divide the remaining moles by the final solution volume to obtain the concentration.

Answer 1

The Correct Option is C