Question

The treatment of $C{H}_{3}MgX$ with $C{H}_{3}C\equiv C-H$ produces:

• A. $C{H}_{3}MgX=C-C{H}_3$
• B. $C{H}_{3}CH=CHC{H}_3$
• C. $C{H}_4$
• D. $(C{H}_3{)}_{2}C=C{H}_2$

Answer 1

The correct option is C $C{H}_4$

The option (C) is the correct answer.
The treatment of $C{H}_{3}MgX$ (grignard reagent) with $C{H}_{3}C\equiv C-H$ (alkyne) produces $C{H}_4$ (methane).
$C{H}_{3}MgX+C{H}_{3}C\equiv C-H\to C{H}_{3}C\equiv C-MgX+C{H}_4$
Note: This reaction is used for the alkylation of terminal alkynes.