An alkyne of six carbon atoms gives the same single product in its reaction either with bh3 in thf followed by h2o2 /oh–, or with h2o/hg2 /h3o . draw the structure of the alkyne (containing only carbon and hydrogen atoms).

Answer

3-hexyne.

Explanation:

Hello,

In this case, on the attached picture, you will see how 3-hexyne is firstly hydrated to hex-3-en-3-ol or 3-hexen-3-ol via the two given catalysts which yields the very same single product in terms of nomenclature but differing on the OH position.

Now, due to the high-oxidizing media, an equilibrium is attained between hex-3-en-3-ol and hexan-3-one which again, could be yielded via either of the firstly hydrated species.

Therefore, the requested alkyne is 3-hexyne.

Best regards.

the positions which points up in upward carbon and down in downward carbon are axial

and vice versa holds true for equatorial positions

so the correct answer with labelled diagram will be