WAEC - Chemistry (2008 - No. 34)
Which of the following compounds would not give a precipitate with ammoniacal AgNO3 solution?
CH3 C≡CCH3
HC≡CH
CH3C≡CH
CH3CH2C≡CH
Uitleg
Only terminal alkyne(simply, the alkyne in which the triple bonded carbon atoms are at the extreme positions.) reacts with ammonical AgNO3 and gives a white precipitate,
therefore, the correct option is A (Non-Terminal Alkyne has a triple bond at any place other than the end positions).