Chemistry 0620 · IGCSE · Carboxylic acids

Carboxylic acids — practice question

The diagram shows the structure of compound X. X is part of the same homologous series as ethanoic acid. Which row gives some of the properties of an aqueous solution of X?

  • Areacts with $\text{CaCO}_3$ to produce a gas: no; neutralises $\text{CuO}$: no; turns methyl orange red: no
  • Breacts with $\text{CaCO}_3$ to produce a gas: no; neutralises $\text{CuO}$: yes; turns methyl orange red: no
  • Creacts with $\text{CaCO}_3$ to produce a gas: yes; neutralises $\text{CuO}$: yes; turns methyl orange red: yes
  • Dreacts with $\text{CaCO}_3$ to produce a gas: yes; neutralises $\text{CuO}$: no; turns methyl orange red: yes

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