Question

What products are obtained in the oxidation of 2-hexene with warm concentrated permanganate solution?
A. Acetate, Butanone
B. Acetate, Butanal
C. Acetate, Butanoate
D. Acetaldehyde, Butanoate

Answer 1

Oxidation is referred to as either addition of an oxygen atom or removal of a hydrogen atom. Even oxidation refers to the loss of electrons by a molecule, atom, or ion during a reaction. Moreover, oxidation occurs when the oxidation state of a molecule, atom, or ions is increased. The process opposite to oxidation is known as reduction. While the reaction in which oxidation and reduction takes place simultaneously is called a redox reaction

Complete answer:
Alkenes when treated with warm or hot concentrated potassium permanganate or even with potassium dichromate solution result in the splitting of the double bond between the carbon atoms forming a carboxylic acid or a ketone.
Therefore, the oxidation of 2-hexene, a member of the alkenes family with warm concentrated permanganate solution, first leads to the formation of an intermediate product i.e. 2,3-hexanediol. But this diol is easily oxidized by the manganate ions. Since, 2-hexene is a part of non-terminal alkenes, breaking of the double bonds between the carbon atoms and attachment of two carbon-oxygen double bond takes place simultaneous leading to the formation of acetate with the chemical formula [$C{H_3}COOH$] which is a carboxylic acid and butanone with chemical formula ${C_4}{H_8}O$ which is a ketone.

Therefore the correct answer is option A.

Note:
Alkaline potassium permanganate solution is also known as Baeyer’s reagent, while the common name of potassium permanganate is Condy’s crystals. Potassium permanganate is composed of K+ cation and $Mn{O^{4-}}$ anion. Potassium permanganate is a strong oxidizing agent with the chemical formula $KMn{O_4}$. Potassium permanganate is purplish-black crystalline salt with disinfectant, deodorizing, and astringent properties.