Chemistry 5070 · O Level · Solids, liquids and gases

Solids, liquids and gases — practice question

The table gives the melting points and boiling points of four compounds, W, X, Y and Z. These four compounds are silicon(IV) oxide, ethane, bromine and a carboxylic acid with formula $\text{C}_{16}\text{H}_{32}\text{O}_2$. Which row shows the identities of W, X, Y and Z?

  • Asilicon(IV) oxide W, ethane X, bromine Z, carboxylic acid $\text{C}_{16}\text{H}_{32}\text{O}_2$ Y
  • Bsilicon(IV) oxide W, ethane Y, bromine Z, carboxylic acid $\text{C}_{16}\text{H}_{32}\text{O}_2$ X
  • Csilicon(IV) oxide Y, ethane Z, bromine W, carboxylic acid $\text{C}_{16}\text{H}_{32}\text{O}_2$ X
  • Dsilicon(IV) oxide Y, ethane Z, bromine X, carboxylic acid $\text{C}_{16}\text{H}_{32}\text{O}_2$ W

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