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CHequivCHunderset(Pd//BaSO(4))overset(H(...

`CHequivCHunderset(Pd//BaSO_(4))overset(H_(2))to[A]overset(Br_(2))to[B]underset("Heat")overset(KOH(alc.))to[C]`

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To solve the given question step by step, we will analyze the reactions involving acetylene (C2H2) and identify the products A, B, and C. ### Step 1: Reaction of Acetylene with Hydrogen **Reaction:** \[ \text{C}_2\text{H}_2 \overset{\text{H}_2}{\underset{\text{Pd/BaSO}_4}{\rightarrow}} \text{A} \] **Explanation:** Acetylene (C2H2) reacts with hydrogen (H2) in the presence of palladium on barium sulfate (Pd/BaSO4), which acts as a poisoned catalyst. This reaction is a hydrogenation process, where the triple bond in acetylene is converted to a double bond. ...
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HC-=CHoverset(HgSO_(4)//H_(2)SO_(4))rarr[A]overset("Oxidation")rarr[B]overset(PCl_(5))rarr[C]overset(H_(2))underset(Pd//BaSO_(4))rarr[D]underset(H_(3)O^(+))overset(CH_(3)MgBr)rarr[E]