See image — AITS & Test Series Chemistry Question

💡 Solution & Explanation

Sol. 3Br2 + 6NaOH = 5NaBr + NaBrO3 NaBr + AgNO3 = AgBr + NaNO3 AgBr + KMnO4 = Br2 + MnO2 No. of meq of KMnO4 = No. of meq of AgBr No. of millimoles of NaBr =2/3 x 3 x 50 = 100 no. of millimoles of NaOH required = 6/5 x100 = 120 volume of NaOH used = 60 ML molarity of NaOH = 120/60 = 2M