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HC-=CHunderset("under pressure")overset(...

`HC-=CHunderset("under pressure")overset(Heated)rarr(A)overset(O_3//Red.)rarrGlyo xal only`.
On catalytic hydrogenation, `0.2gm` of (A) consumed `172 ml` of `H_2` at STP. What is the structure of (A)?

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To solve the question step by step, we will analyze the information provided and perform the necessary calculations. ### Step 1: Identify the Reaction The question states that ethyne (HC≡CH) is treated under heat and pressure to form compound A. This compound A undergoes reductive ozonolysis to yield glyoxal (HOCH=CHO). ### Step 2: Determine Possible Structures for Compound A Given that glyoxal is produced from compound A, we consider the possible structures. The two likely candidates are: 1. Ethyne (HC≡CH) ...
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