What gas is quantitatively liberated when ethylmagnesium bromide () reacts with terminal alkynes or — Hydrocarbons Chemistry Question
Question
What gas is quantitatively liberated when ethylmagnesium bromide ($C_2H_5MgBr$) reacts with terminal alkynes or heavy water ($D_2O$)?
Answer: A
💡 Solution & Explanation
Grignard reagents extract active protons (or deuterons) to form the alkane corresponding to their alkyl group. Ethylmagnesium bromide strictly yields ethane or mono-deuteroethane.
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