Calcium oxide reacts with carbon with the following chemical reaction.

Question

CaO + 3C → CaC
+ CO

Which statements about CO are correct?

Select all that apply.

Responses

CO will have similar chemical properties to CaC2.
CO will have similar chemical properties to CaC 2 .

CO is likely to have different chemical properties than CaO.
CO is likely to have different chemical properties than CaO.

CO is likely to have different chemical properties than C.
CO is likely to have different chemical properties than C.

CO will have similar chemical properties to CaO.
CO will have similar chemical properties to CaO.

Answer 1

To analyze the statements regarding CO based on the given chemical reaction:

1. CO will have similar chemical properties to CaC₂.

   • This statement is incorrect. Carbon monoxide (CO) and calcium carbide (CaC₂) are quite different in terms of their chemical properties. CO is a simple molecule and behaves as a reducing agent, while CaC₂ is an ionic compound that reacts differently.

2. CO is likely to have different chemical properties than CaO.

   • This statement is correct. Carbon monoxide (CO) is a small molecule with distinct properties compared to calcium oxide (CaO), which is a basic ionic compound.

3. CO is likely to have different chemical properties than C.

   • This statement is correct. CO has different properties than elemental carbon (C). While carbon is a solid and can exist in several allotropes, CO is a gas and has unique reactivity as a ligand and reducing agent.

4. CO will have similar chemical properties to CaO.

   • This statement is incorrect. As stated above, CO and CaO are fundamentally different in terms of structure and chemical behavior.

Based on this analysis, the correct statements about CO are:

• CO is likely to have different chemical properties than CaO.
• CO is likely to have different chemical properties than C.