NTA Abhyas JEE Main2020ChemistryElectrochemistryPractice
Electrolysis of hot aqueous solution of N a C l gives N a C l O 4 , i.e., sodium perchlorate, N a C l + 4 H 2 O → N a C l O 4 + 4 H 2 ↑ How many Faraday are required to obtain 1000 g of sodium perchlorate? Report your answer by rounding it up to nearest whole number.
Correct answer
66
Step-by-step solution
Equivalent mass of N a C l O 4 = Molecular mass Change in oxidation state of chloride = 122.5 + 7 - ( - 1 ) = 15.13 Number of Faraday = Number of equivalent of N a C l O 4 formed = 1000 15.13 = 66