1.

Write the balanced equation in the manufacture of K_2Cr_2O_7 from chromite ore

Answer»

Solution :`4FeCr_(2)O_(4)+8Na_(2)CrO_(4)+2Fe_(2)O_(3)+8CO_(2)`
`2Na_(2)CrO_(4)+2H^(+)rarrNa_(2)Cr_(2)O_(7)+2NA^(+)+H_(2)O`
`Na_(2)Cr_(2)O_(7)+2KCl rarrk_(2)Cr_(2)O_(7)+2NaCl`


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