Chemistry Chapter on Alcohol Acidity
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Questions and Answers

Which statement best characterizes the acidity of alcohols compared to water?

  • Alcohols are equally acidic as water.
  • Alcohols are weaker acids than water, except methanol. (correct)
  • Alcohols have no acidity when compared to water.
  • Alcohols are stronger acids than water.

    • What occurs when alcohols react with active metals like sodium?

  • They produce alkoxides and release hydrogen gas. (correct)
  • They produce acidic solutions.
  • They form complex alcohols.
  • They produce metals and water.

    • How does the electronegativity of substituents affect the acidity of alcohols?

  • Acidity is unrelated to substituent electronegativity.
  • Higher electronegativity decreases acidity.
  • Higher electronegativity has no effect on acidity.
  • Higher electronegativity increases acidity. (correct)

    • In the reaction of alcohol with sodium, what is the by-product released?

    <p>Hydrogen gas (D)</p> Signup and view all the answers

    Which of the following is true about the $K$ value of alcohols compared to water?

    <p>Alcohols have a $K$ value less than that of water. (D)</p> Signup and view all the answers

    Flashcards

    Alcohol Acidity

    The ability of an alcohol molecule to donate a proton (H+).

    Alcohol vs Water Acidity

    Alcohols are significantly weaker acids than water.

    Alcohol + Metal Reaction

    Alcohols react with active metals (like sodium) to form alkoxides and release hydrogen gas.

    Alcohol Acidity Trend

    The acidity of alcohols depends on the type of alkyl group attached to the hydroxyl group.

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    Alcohol + sodium Reaction Example

    Two molecules of ethanol react with two atoms of sodium to produce two molecules of sodium ethoxide and one molecule of hydrogen gas.

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