Compound X, a geminal dihalide, is exposed to excess strong base (excess NaNH₂ then H₂O) to produce an alkyne (compound Y). Alkyne Y is a terminal alkyne, has a molecular formula of C₅H₈, and has exactly 4 distinct resonances in the (proton-decoupled) ¹³C NMR spectrum. What are the two possible structures for compound X?

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The Answer of Compound X, a geminal dihalide, is exposed to excess strong base (excess NaNH₂ then H₂O) to produce an alkyne (compound Y). Alkyne Y is a terminal alkyne, has a molecular formula of C₅H₈, and has exactly 4 distinct resonances in the (proton-decoupled) ¹³C NMR spectrum. What are the two possible structures for compound X?

Compound X, a Geminal Dihalide, Is Exposed to Excess Strong