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Cr na. CR+3oh = CR (Oh)3. 2cr 3h2so4 cr2 so4 3. Cr3+NAOH. CR Oh 3 h2so4 Koh.
CR+3oh = CR (Oh)3. 2cr 3h2so4 cr2 so4 3. Cr3+NAOH. CR Oh 3 h2so4 Koh.

See also