AP EAMCET Engineering 2018 Apr 24 Shift 1 Paper

Section: Chemistry
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Question : 149 of 160
 
Marks: +1, -0
Identify the reactions in which dichromate acts as an oxidizing reagent
I) Cr2O72− + 6Fe2+ + 14H+ → 2Cr3+ + 6 Fe3+ + 7 H2O
II) Cr2O72−+2OH− → 2CrO42−+H2O
III) Cr2O72−+6I−+14H+ → 2Cr3−+3I2+7H2O
IV) Na2Cr2O7+2KCl → K2Cr2O7 + 2NaCl
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