Question

Which of the following organic compounds has same hybridization as its combustion product CO2 ?

• A. Ethyne
• B. Ethene
• C. Ethanol
• D. Ethane

Answer 1

The Correct Option is A

To determine which organic compound among the options has the same hybridization state as its combustion product, CO₂, it is essential to analyze the hybridization states involved.

1. Carbon dioxide (CO₂) is a linear molecule where the carbon atom is sp hybridized. This is because it forms two double bonds (one with each oxygen atom). The hybridization type corresponds to one sigma bond and one pi bond per double bond.
2. Now, analyze the hybridization of each organic compound given in the options:

• Ethyne (C₂H₂): In ethyne, each carbon is connected by a triple bond to the other carbon and a single bond to a hydrogen atom. The hybridization of the carbon atoms in ethyne is sp, similar to CO₂.
• Ethene (C₂H₄): In ethene, the carbon atoms form a double bond with each other. Each carbon is also bonded to two hydrogen atoms. The hybridization state here is sp^2, which differs from CO₂.
• Ethanol (C₂H₅OH): In ethanol, the carbon atoms are single-bonded to each other and bonded to hydrogen and hydroxyl groups. The hybridization of the carbon atoms is sp^3, different from CO₂.
• Ethane (C₂H₆): In ethane, the carbon atoms are bonded to each other and to hydrogens with single bonds. The hybridization is also sp^3, different from CO₂.

3. Thus, the organic compound that has the same hybridization as CO₂ is Ethyne, as both are sp hybridized.

Hence, the correct answer is Ethyne.