Question

(iii) describe the results of one chemical test to distinguish between groups x and y. bromine water is not available to you. include:

• the reaction type.
• the name of the functional group of the product.
• a structural drawing of the functional group of the product.

Explanation:

Identify the groups and select a chemical test

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Determine reaction observations and type

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Identify and draw the product's functional group

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Answer:

• Chemical Test and Observations:

Add acidified potassium permanganate solution (\(\text{KMnO}_4 / \text{H}^+\)) to both groups.

• With Group X (alkene), the purple solution decolorizes (turns colorless) and a brown precipitate (\(\text{MnO}_2\)) may form if neutral/alkaline conditions are used.
• With Group Y, there is no reaction and the solution remains purple.

• Reaction Type:

Oxidation (or addition)

• Name of the Functional Group of the Product:

Diol (or vicinal diol / alcohol)

• Structural Drawing of the Functional Group of the Product:

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