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What is the equivalent weight of potassium dichromate in acidic medium ? 

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In acidic solution dichromate gives chromic salts
`Cr_(2)O_(7)^(2-)to2Cr^(3+)`
`(2)xx (+6) to (2) xx (+3)`
The change in oxidantion number of potassium dichromate in acid medium is 6
The formula weight =294
Equivalent weight ` = (294)/(6) =49`
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