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Chapter 2: Problem 144

The compound \(\mathrm{CH}_{3}-\mathrm{C}=\mathrm{CH}_{2}-\mathrm{CH}_{3}\) when treated with \(\mathrm{NaIO}_{4}\) in presence of \(\mathrm{KMnO}_{4}\) gives

Short Answer

Expert verified
Answer: The products formed are acetic acid (CH₃-COOH), formic acid (CH₂COOH), sodium manganate (NaMnO₄), potassium iodate (KIO₄), and water (H₂O).

Step by step solution

01

Identify the functional groups

The given compound is CH₃-C≡CH₂-CH₃, which contains an alkyne functional group (C≡C) at the second and third carbon atoms.
02

Reaction of alkynes with NaIO₄ and KMnO₄

When an alkyne reacts with NaIO₄ in the presence of KMnO₄, the alkyne undergoes oxidative cleavage. In this reaction, the triple bond (C≡C) gets broken, and the two fragments formed are oxidized to obtain carboxylic acid groups (-COOH).
03

Apply the oxidative cleavage to the given compound

CH₃-C≡CH₂-CH₃ undergoes oxidative cleavage at the alkyne bond, resulting in two fragments: 1. CH₃-COOH (acetic acid or ethanoic acid) 2. CH₂COOH (formic acid or methanoic acid)
04

Write the final balanced equation

The final balanced equation for the reaction of CH₃-C≡CH₂-CH₃ with NaIO₄ in the presence of KMnO₄ can be written as: CH₃-C≡CH₂-CH₃ + 2 NaIO₄ + 2 KMnO₄ → CH₃-COOH + CH₂COOH + 2 NaMnO₄ + 2 KIO₄ + 2 H₂O

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Most popular questions from this chapter

A reaction that does not lead to an alkene is (a) Kolbe's electrolysis (b) \(\alpha\) -elimination (c) Wittig reaction (d) dehalogenation

Directions: This section contains 3 paragraphs. Based upon the paragraph, 3 multiple choice questions have to be answered. Each question has 4 choices (a), (b), (c) and (d), out of which ONLY ONE is correct. Passage I The three main classes of hydrocarbons are alkanes, alkenes and alkynes. Alkanes having cyclic structure are called cycloalkanes. They exhibit chain and ring chain isomerism. Alkenes and alkynes are more reactive than alkanes. A certain hydrocarbon has the molecular formula \(\mathrm{C}_{5} \mathrm{H}_{8} .\) Which of the following is not a structural possibility for this hydrocarbon? (a) a cycloalkane (b) contains a ring and a double bond (c) contains two double bond and no ring (d) an alkyne

\(\mathrm{CH}_{3} \mathrm{COCH}_{2} \mathrm{CH}_{3}\) can be reduced to \(\mathrm{n}\) -butane when the reducing agent is (a) \(\mathrm{NaBH}_{4}\) (b) LiAlH (c) \(\mathrm{Zn}(\mathrm{Hg}) / \mathrm{HCl}\) (d) \(\mathrm{H}_{2} \mathrm{~S}\)

A compound that decolourizes alkaline \(\mathrm{KMnO}_{4}\) and gives a red precipitate with ammoniacal cuprous chloride is (a) 1 -butyne (b) 1 -pentene (c) 2 -butyne (d) 2-pentyne

Alkenes are a highly reactive group of compounds as they undergo a wide variety of reactions like hydrogenation, ozonolysis, halogenation, epoxidation and halohydrin formation. Many of the reactions are regioselective or stereoselective reactions. When bromine is added to a solution of 1 -hexene in methanol, the product formed is (a) \(\mathrm{BrCH}_{2}-\mathrm{CHBr}-\mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}\) (b) \(\mathrm{H}_{3} \mathrm{C}-\mathrm{CHBr}-\mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}\) (c) a mixture of \(\mathrm{BrCH}_{2} \mathrm{CHBrCH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}\) and \(\mathrm{BrCH}_{2}-\mathrm{CH}\left(\mathrm{OCH}_{3}\right)-\mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}\) (d) \(\mathrm{H}_{3} \mathrm{COCH}_{2}-\mathrm{CH}_{2}-\mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{2} \mathrm{CH}_{3}\)
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