X and Y are the number of electrons involved, respectively during the oxidation of I – to I2 and S 2 — JEE Mains Chemistry Past Papers Chemistry Question
Question
X and Y are the number of electrons involved, respectively during the oxidation of I – to I2 and S 2– to S by acidified K2Cr2O7. The value of X + Y is ______.
Answer: .
💡 Solution & Explanation
Cr2O7 2– + 14H + + 6I – 2Cr 3+ + 3I2 + 7H2O no. of moles e – involved = x = 6 Cr2O7 2– + 3S 2– + 14H + +S + 2Cr 3+ + 7H2O No. of moles e – involved = y = 6 Sum of x + y = 6 + 6 = 12 ALLEN
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