1.

The isomerisation of 1-butyne to 2 -butyne can be achieved by treatment with

Answer»

HYDROCHLORIC acid
ammoniacal silver nitrate
ammoniacal cuprous chloride
ethanolic potassium hydroxide

Solution :On heating with alcoholic KOH or `NaNH_2` in inert solvent , the triple bond of 1-alkyne is shifted TOWARDS the centre to form an ISOMERIC 2-alkyne.
`CH_(3) underset("1-Butyne")(CH_2C) -= CH overset("ALC." KOH)underset(DELTA)(to) CH_(3) -underset(2-"Butyne")(C-=C)- CH_(3)`


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