K _ 2 Cr _ 2 O _ 7 on heating with aqueous NaOH gives

Chemistry · JEE Main · NTA Exams — d- and f-Block Elements

\(\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}\) on heating with aqueous NaOH gives
  1. \(\mathrm{Cr}_{2} \mathrm{O}_{7}^{2-}\)
  2. \(\mathrm{Cr}(\mathrm{OH})_{2}\)
  3. \(\mathrm{CrO}_{4}^{2-}\)
  4. \(\mathrm{Cr}(\mathrm{OH})_{3}\)

Answer

(C) CrO _ 4 ^ 2-

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