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`CrO_3` dissolves in aqueous NaOH to give
A. `Cr_(2)O_(7)^(2-)`
B. `CrO_(4)^(2-)`
C. `Cr(OH)_(3)`
D. `Cr(OH)_(2)`

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`CrO_(3) +2NaOH to underset("Yellow colour")underset("Sod. Chromate")(Na_(2)CrO_(4)) +5H_(2)O`

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