When different alkenes are treated with hot concentrated KMnO4 solution, different products are obtained. Which of the following alkenes produces two moles of carboxylic acids?
Correct answer: C. R1R2C = CR3R4
- A. H2C = CH2
- B. R - CH = CH - R
- C. R1R2C = CR3R4
- D. R1R2C = CHR4
Explanation
When a symmetrical alkene like R1R2C=CR3R4 is treated with hot concentrated KMnO4, it undergoes oxidative cleavage to produce two moles of carboxylic acids. The reaction breaks the double bond between the two carbons, and each carbon becomes part of a carboxylic acid functional group (-COOH).
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