Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JIPMER2015ChemistryCoordination Compounds

When H ₂ O ₂ is added to ice cold solution of acidified potassium dichromate in ether and the contents are shaken and allowed to stand

Options

  1. Aa blue colour is obtained in ether because of formation of CrO ₅
  2. Ba blue colour is obtained in ether because of formation of CrO ₃
  3. Ca blue colour is obtained in ether because of formation of Cr ₂ ( SO ₄ )₃
  4. Dchromyl chloride is formed

Correct answer

A. a blue colour is obtained in ether because of formation of CrO ₅

Step-by-step solution

When H ₂ O ₂ is added to acidified potassium dichromate in ether solution, potassium dichromate is oxidised to blue peroxide of chromium ( CrO ₅ ) which is soluble in ether and produces blue coloured solution. aligned & K ₂ Cr ₂ O ₇+ H ₂ SO ₄+4 H ₂ O ₂ & 2 CrO ₅+ K ₂ SO ₄+5 H ₂ O & aligned

Practice Coordination Compounds on Quantrex Academy →

More from Coordination Compounds

[ Ti(H ₂ O) ₆]²⁺ is a colored compound where as [ Zn(H ₂ O) ₆]²⁺ is colorless, because 2026What is coordination number of central metal ion in cisplatin ? 2026Which of the following complexes exhibits solvate isomerism? 2026What type of ligand the ethylenediamine is? 2026Which of the following isomers is used in the treatment of cancer? 2026Identify the geometry and magnetic behavior of the complex [ Ni ( CO )₄] . 2026Identify the correct match from the following for coordinate complex (column A) and respective geometry (column B) Column A Coordination complex Column B Geometry (A). [ Ni ( CN )₄ 2026Which type of complex is Diamminedichloroplatinum(II)? 2026 Full Coordination Compounds list All JIPMER PYQs