Chemistry · PYQ NEET UG 2017

Consider the following reactions: \( \text{X} \xrightarrow[\text{573 K}]{\text{Cu}} \text{A} \xrightarrow[\text{OH}^-/\Delta]{\text{[Ag(NH}_3\text{)}_2\text{]}^+} \text{Silver mirror observed} \) \( \text{A} \xrightarrow[\text{OH}^-/\Delta] \text{Y} \xrightarrow{\text{H}^+} \text{Z} \) \( \text{A} \xrightarrow[\text{NH}_2-\text{NH}-\text{C}-\text{NH}_2] \text{Z} \text{ (incorrect reaction label in diagram, representing semicarbazone formation)} \)\nIdentify \( \text{X}, \text{Y} \) and \( \text{Z} \).

1. A-Methoxymethane, X-Ethanol, Y-Ethanoic acid, Z-Semicarbazide
2. A-Ethanal, X-Ethanol, Y-But-2-enal, Z-Semicarbazone
3. A-Ethanol, X-Acetaldehyde, Y-Butanone, Z-Hydrazone
4. A-Methoxymethane, X-Ethanoic acid, Y-Acetate ion, Z-Hydrazine