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The isomerism of 2-butyne to 1-butyne ca...

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

A

hydrochloric acid

B

ammoniacal silver nitrate

C

ammoniacal cuprous chloride

D

ethanolic potassium hydroxide

Text Solution

Verified by Experts

The correct Answer is:
D
On heating with alcoholic KOH or `NaNH_(2)` in an inert solvent, the triple bond of but-1-yne gets shifted to but-2-yne.
`underset("Bul-1-yne")(CH_(3)CH_(2)-C -=CH) underset(Delta)overset("alc. KOH")to underset("Bul-2-yne")(CH_(3)-C -=C -CH)`
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MODERN PUBLICATION-HYDROCARBONS-COMPETITION FILE (OBJECTIVE TYPE QUESTIONS) (MULTIPLE CHOICE QUESTIONS from competitive examinations (JEE (Main) and Other State Boards. Engineering Entrance))
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  12. The major product of the following reaction is : CH(3)CH(2)underset(...

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  15. The compound which does not lead to benzoic acid by oxidation with KMn...

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  16. Sulphonation of benzene with excess sulphuric acid provides

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  17. Propylene on treatment with HBr//H(2)O(2) provides

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  18. The alkyl halides required to prepare by Wurtz reaction are

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  19. But-2-yne is reduced to trans-but-2-ene using

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