A solution containing 2.68×10−3mol of A+n ions requires 1.61×10−3mole of MnO4− for the oxidation of A+n to AO3−in acidic medium. What is the value of ‘n’ ?
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a
1
b
2
c
3
d
4
answer is B.
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Detailed Solution
eq. of MnO4− = eq. of AO3−MnO4−+5e−→Mn+2A+n→AO3−+5−n1.61×10−3×5=2.68×10−3×5−nn≃2
A solution containing 2.68×10−3mol of A+n ions requires 1.61×10−3mole of MnO4− for the oxidation of A+n to AO3−in acidic medium. What is the value of ‘n’ ?