Identify the reagent from the following list which can easily distinguish between 1-butyne and 2-butyne (a) bromine, CCl4 (b) H2, Lindlar catalyst (c) dilute H2SO4, HgSO4 (d) ammonical Cu2Cl2 solution

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Identify the reagent from the following list which can easily distinguish between 1-butyne and 2-butyne

Hydrocarbons

Last Post by Riya08 3 years ago

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16/02/2022 12:22 pm

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Shilpi98

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Identify the reagent from the following list which can easily distinguish between 1-butyne and 2-butyne

(a) bromine, CCl₄

(b) H₂, Lindlar catalyst

(d) ammonical Cu₂Cl₂ solution

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16/02/2022 12:25 pm

Riya08

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Correct answer: (d) ammonical Cu₂Cl₂ solution

Explanation:

Ammoniacal cuprous chloride gives precipitate (red) only with terminal alkynes, i.e. alkynes having acidic hydrogen atom, such as butyne-1 (CH ≡ CCH₂CH₃)

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Identify the reagent from the following list which can easily distinguish between 1-butyne and 2-butyne

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