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  • Hexane and Bromine Water Reaction with Sodium Hydroxide: A Detailed Explanation
    Yes, hexane and bromine water in the presence of sodium hydroxide solution will react. However, the reaction is not a direct reaction between hexane and bromine water.

    Here's the breakdown:

    * Bromine water: This is a solution of bromine (Br2) in water. Bromine is a reddish-brown liquid that is moderately soluble in water.

    * Sodium hydroxide: This is a strong base that can deprotonate various compounds.

    * Hexane: This is an alkane, a non-polar hydrocarbon.

    The reaction:

    1. Formation of hypobromite ion: Sodium hydroxide reacts with bromine water to form hypobromite ion (BrO-), a powerful oxidizing agent. The reaction is as follows:

    Br2 + 2NaOH → NaBr + NaBrO + H2O

    2. Reaction with hexane: The hypobromite ion will react with hexane, specifically with the C-H bonds on the alkane, in a halogenation reaction. This reaction substitutes a hydrogen atom on the hexane molecule with a bromine atom, forming a brominated alkane.

    C6H14 + BrO- → C6H13Br + OH-

    Overall reaction:

    The overall reaction can be summarized as:

    C6H14 + Br2 + 2NaOH → C6H13Br + NaBr + NaBrO + H2O

    Key points:

    * The reaction is favored under alkaline conditions.

    * The reaction is a substitution reaction where a bromine atom replaces a hydrogen atom on the hexane molecule.

    * The reaction is relatively slow at room temperature.

    * The product, a brominated alkane, is a colorless liquid that is denser than water.

    Note: This reaction is a good example of how a seemingly simple reaction can be more complex than it appears. The key to understanding the reaction is to recognize that the bromine water is not the direct reactant, but rather a source of hypobromite ions, which are the actual oxidizing agent.

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