Chemistry 9701 · AS & A Level · Chemical bonding

Chemical bonding — practice question

Esters are often employed as solvents and also as flavouring agents in fruit drinks and confectionery. An ester $\text{C}_8\text{H}_{12}\text{Br}_2\text{O}_4$ may be made in low yield through the reaction shown. $\text{CH}_3\text{C(Br)(CH}_2\text{Br)CO}_2\text{H} + (\text{CH}_3)_2\text{C(OH)CO}_2\text{H} \rightarrow \text{C}_8\text{H}_{12}\text{Br}_2\text{O}_4 + \text{H}_2\text{O}$ What structural formula represents the ester $\text{C}_8\text{H}_{12}\text{Br}_2\text{O}_4$?

  • A$\text{CH}_3\text{C(Br)(CH}_2\text{Br)CO}_2\text{C(CH}_3)_2\text{CO}_2\text{H}$
  • B$\text{CH}_3\text{C(Br)(CH}_2\text{Br)CO}_2\text{C(OH)(CH}_3)\text{CO}_2\text{CH}_3$
  • C$\text{CH}_3\text{C(Br)(CH}_3)\text{CO}_2\text{C(CH}_3)_2\text{CO}_2\text{CH}_2\text{Br}$
  • D$(\text{CH}_3)_2\text{C(Br)C(CO}_2\text{H)(CH}_2\text{Br)CO}_2\text{CH}_3$

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