Question

Which of the following reagent(s) can be used to distinguish between 1-hexyne and 2 hexyne​

Answer 1

Ammonical Ag NO3 solution will be used to distinguishg between them

Answer 2

• 2 Butyne is not terminal alkyne but 1 butyne is a a terminal alkyne. when1 butyne reacts with ammoniacal AgNO3 and it gives a white precipitate of silver butynide . But 2 butyne does not give a white precipitate and hence Ammoniacal silver nitrate can be used to distinguish 1 butyne from 2 butyne.

2CH3CH2CCH + 2AgNO3 + 2NH4OH——› 2CH3CH2CCAg + 2NH4NO3 + 2H2O

2CH3CCCH3 + 2AgNO3 + 2NH4OH ——› does not react ....