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CHEMISTRY

JAMB 2007 - Question 3

Chemistry 2007 JAMB Past Questions - Question 3: When calcium oxide is heated with carbon, the oxide will

Choose the correct answers from the options given.

When calcium oxide is heated with carbon, the oxide will

A: be converted to the carbide

B: be converted to the trioxocarbonate(IV) salt

C: decompose to the metal

D: melt, producing carbon(IV) oxide.

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Correct Answer

Explanation

When calcium oxide (CaO) is heated with carbon, the following reaction takes place:

\[ CaO + 3C \rightarrow CaC_2 + CO \]

In this reaction, calcium oxide reacts with carbon to form calcium carbide (\(CaC_2\)) and carbon monoxide (\(CO\)).

So, the correct statement among the options you provided is: "the oxide will be converted to the carbide."