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(C) The industrial preparation of ethyl alcohol from ethylene involves the hydration of ethylene in the presence of concentrated $H_2SO_4$. Step $1$:

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Absorbing in $H_2SO_4$ followed by hydrolysis

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(C) The industrial preparation of ethyl alcohol from ethylene involves the hydration of ethylene in the presence of concentrated $H_2SO_4$. Step $1$: Ethylene reacts with concentrated $H_2SO_4$ to form ethyl hydrogen sulfate: $CH_2 = CH_2 + H_2SO_4 \rightarrow CH_3 - CH_2 - HSO_4$. Step $2$: The resulting ethyl hydrogen sulfate is then hydrolyzed with water to produce ethyl alcohol: $CH_3 - CH_2 - HSO_4 + H_2O \rightarrow CH_3CH_2 - OH + H_2SO_4$.

Ethyl alcohol is industrially prepared from ethylene by

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