Formation of red precipitate:
$$R-C \equiv C-H + Cu_2Cl_2 + NH_4OH \rightarrow R-C \equiv C-Cu \downarrow$$Distinguishes terminal alkynes from non-terminal.
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CAT Formulas
Hydrocarbons - Alkynes
Cuprous chloride test for terminal alkynes
Formation of red precipitate:
$$R-C \equiv C-H + Cu_2Cl_2 + NH_4OH \rightarrow R-C \equiv C-Cu \downarrow$$Distinguishes terminal alkynes from non-terminal.
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