Chemistry 9701 · AS & A Level · Hydroxy compounds

Hydroxy compounds — practice question

If ethanol is allowed to react with sodium metal, ethoxide ions, $\text{CH}_3\text{CH}_2\text{O}^-$, form. If water is allowed to react with sodium metal, $\text{OH}^-$ ions form. Which statement about these reactions and the ethoxide ion is correct?

  • AAt the same temperature, the rate of reaction between sodium and ethanol is greater than that between sodium and water.
  • B$\text{CH}_3\text{CH}_2\text{O}^-$ is a stronger base than $\text{OH}^-$ due to the electron-donating effect of the ethyl group.
  • CThe negative charge on the oxygen in an ethoxide ion is delocalised.
  • DIt is easier to deprotonate ethanol as it is more acidic than water.

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