Exams › JEE Advanced › Chemistry
In volumetric analysis, how many moles of Mohr's salt are needed per mole of dichromate ions?
- 3
- 4
- 6
- 7
Correct answer: 6
Solution
Cr2O7²- + 14H+ + 6Fe2+ -> 2Cr3+ + 7H2O + 6Fe3+, so 6 mol of Fe2+ (Mohr's salt) react per mole of dichromate.
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