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JEE Main202127 Aug 2021Evening ShiftChemistryCoordination CompoundsActual

The additon of dilute NaOH to Cr 3 + salt solution will give :

Options

  1. Aa solution of Cr ( OH ) 4 -
  2. Bprecipitate of Cr ( OH ) 6 3 -
  3. Cprecipitate of Cr 2 O 3 H 2 O n
  4. Dprecipitate of Cr ( OH ) 3

Correct answer

C. precipitate of Cr 2 O 3 H 2 O n

Step-by-step solution

Cr 3 + ⟶ dil .   NaOH Cr 2 O 3 . ( H 2 O ) n ↓   ( Green   ppt .) 

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