Question

By heating ethyl alcohol from 160°C to 170°C, we obtain:

• A. \( C_2H_5OC_2H_5 \)
• B. \( C_2H_6 \)
• C. \( C_2H_4 \)
• D. \( CH_3COCH_3 \)

Hint:

Heating alcohols like ethanol at higher temperatures causes dehydration reactions, leading to the formation of alkenes.

Answer 1

The Correct Option is C

When ethyl alcohol (C\(_2\)H\(_5\)OH) is heated at temperatures between 160°C and 170°C, it undergoes a dehydration reaction to form ethene (C\(_2\)H\(_4\)). The dehydration reaction occurs when water (H\(_2\)O) is removed from ethanol, leading to the formation of ethene: \[ C_2H_5OH \xrightarrow{160^\circ C - 170^\circ C} C_2H_4 + H_2O \] Thus, the correct answer is C \( C_2H_4 \).