Potassium dichromate is usedA. in electroplatingB. as a reducing agent – InterviewSolution

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1.	Potassium dichromate is usedA. in electroplatingB. as a reducing agentC. oxidise ferrouse ion into ferric ions in acidic media asD. oxidise ferrous ions into ferric ions in acidic media as an oxidsing agent
Answer» Correct Answer - C Potassium dichromate is an oxidising agent, thus it oxidises ferrous ion into ferric ion in acidic medium. `{:(Cr_(2)O_(7)^(2-)+14H^(+)+6e^(-)rarr2Cr^(3+)+7H_(2)O),(" "[Fe^(2+)rarrFe^(3+)+e^(-)]),(bar(Cr_(2)O_(7)^(2-)+6Fe^(2+)+14 H^(+) rarr 6Fe^(3+)+2Cr^(3+)+7H_(2)O)):}`

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