Which of the following reactions is//are correct?A. a.B. b.C. c.D. d. – InterviewSolution

InterviewSolution

1.	Which of the following reactions is//are correct?A. a.B. b.C. c.D. d.
Answer» Correct Answer - A::B::C::D a. `CrO_(3)//MeCOOH`, selectively oxidises `(C=O)` bond, so the product is correct. b. Jones reagent `(H_(2)CrO_(4)+ "aqueous acetone")` oxidies `1^(@)` and `2^(@)` alcohols to aldehydes and ketones, respectively, but does not oxidise `(C=C)` bond, so the product is correct. `MnO_(2)` oxidies only allylic or benzylic hydroxyl group, so no reaction takes place. c. `SeO_(2)//MeCOOH` selectively hydroxylate allylic position, and simultaneously converts active methylene group to `(-CHO)` group, so the product is correct. d. The ring `(B)` containing `EWG` (e.g., `(-NO_(2))` group) is stable and therefore does not undergo oxidation, while ring `(A)` is oxidised. The ring `(B)` containing `EDG` (e.g.,`(-NH_(2))` group) is unstable and undergoes oxidation. So both the products are correct. So the answers are `(a), (b), (c )`, and `(d)`.

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