Sir, please solve this qustion.
Asked by rsudipto
28th November 2018,
5:26 PM
Answered by Expert
Answer:
Statement ii is correct following reaction occurs in estimation process -
Cr2O72- + 6 Fe2+ + 14H+ → 2Cr3+ + 6 Fe3+ + 7H2O
statement i is false since following reaction occurs in basic medium -
MnO4¯ + e- → MnO42-
So Equivalent weight of Mn = Atomic mass/1 (since one electron trnsaction is done in the process)
statement iii is also correct following reaction takes place -
Cr2O72- + 14H+ + 6e- → 2Cr3+ + 7H2O so N = M/6
Answered by Expert
1st December 2018,
2:12 AM
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