In chromyl chloride test for confirmation of Cl– ion, a yellow solution is obtained. Acidification of the solution and addition of amyl alcohol and 10% H2O2 turns organic layer blue indicating formati

Question

In chromyl chloride test for confirmation of Cl– ion, a yellow solution is obtained. Acidification of the solution and addition of amyl alcohol and 10% H2O2 turns organic layer blue indicating formation of chromium pentoxide. The oxidation state of chromium in that is

(A) +6
(B) +5
(C) +10
(D) +3

Prashant Kotian · Accepted Answer

Correct answer: A. Basic medium 2 7 4 2 yellow solution Cl K Cr O H SO CrO Cl CrO Cl          2 1.Acidification 2. Amyl alcohol 4 3.10% H O yellow solution blue compound CrO CrO   Cr O O O – 2 O – 1 O – 1 –1 –1 +6

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