Which of the following statements about alkanes is false?

• A. Alkanes undergo combustion reactions.
• B. Alkanes have the general formula $C_n{H}_{2n+2}$.
• C. Alkanes are saturated hydrocarbons.
• D. Alkanes can form hydrogen bonds with water.

Answer: (D)

Verified step by step guidance

1. Understand the nature of alkanes: Alkanes are hydrocarbons that consist only of single bonds between carbon atoms, making them saturated hydrocarbons.
2. Review the general formula for alkanes: The general formula for alkanes is C_nH_2n+2, where 'n' is the number of carbon atoms.
3. Consider the types of reactions alkanes undergo: Alkanes are known to undergo combustion reactions, where they react with oxygen to produce carbon dioxide and water.
4. Examine the concept of hydrogen bonding: Hydrogen bonds typically occur between a hydrogen atom and a more electronegative atom like oxygen or nitrogen. Alkanes, being nonpolar, do not have the ability to form hydrogen bonds.
5. Identify the false statement: Since alkanes are nonpolar and cannot form hydrogen bonds with water, the statement 'Alkanes can form hydrogen bonds with water' is false.