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Elements, compounds and mixtures

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Question 10

The box contains the names of some substances.

carbon monoxideethanolironneonnitrogenoxygensodiumsodium chloride\begin{array}{|cccc|} \hline \text{carbon monoxide} & \text{ethanol} & \text{iron} & \text{neon} \\ \text{nitrogen} & \text{oxygen} & \text{sodium} & \text{sodium chloride} \\ \hline \end{array}carbon monoxidenitrogen​ethanoloxygen​ironsodium​neonsodium chloride​​

Choose a substance from the box that best matches each description. Each substance may be used once, more than once or not at all.

a.

Which substance is a covalent compound that is a liquid at standard room temperature and pressure?

[1]
b.

Which substance is an elemental gas that relights a glowing splint?

[1]
c.

Which substance is a monatomic element that is extremely unreactive?

[1]
d.

Which substance is a toxic compound produced by the incomplete combustion of hydrocarbons?

[1]
e.

Which substance is a metal that is extracted from its oxide ore by reduction with carbon in a blast furnace?

[1]

Elements, compounds and mixtures Questions

  1. IGCSE
  2. /Chemistry
  3. /Elements, compounds and mixtures