Which of the following compounds would not give a precipitate with ammoniacal AgNO3 solution?

Explanation

 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).