Chemistry 9701 · AS & A Level · Equilibria

Equilibria — practice question

When ethanol reacts with sodium metal, ethoxide ions, $\text{CH}_3\text{CH}_2\text{O}^-$, are formed. When water reacts with sodium metal, $\text{OH}^-$ ions are formed. Which statement correctly describes these reactions and the ethoxide ion?

  • 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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