Question

explain why methanal is a gas at room temperature whereas ethanal is a liquid.

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Answer 1

Methanal is a gas (boiling point -21°C), and ethanal has a boiling point of +21°C. That means that ethanal boils at close to room temperature. ... van der Waals dipole-dipole attractions: Both aldehydes and ketones are polar molecules because of the presence of the carbon-oxygen double bond.Jun 5, 2019