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Light from the Sun takes ~8 minutes 20 seconds to reach Earth, travelling at 300,000 km/s.
Did you know?
Light from the Sun takes ~8 minutes 20 seconds to reach Earth, travelling at 300,000 km/s.
Statement I: The boiling points of aldehydes and ketones are higher than hydrocarbons of comparable molecular masses because of weak molecular association in aldehydes and ketones due to dipole-dipole interactions.Statement II: The boiling points of aldehydes and ketones are lower than the alcohols of similar molecular masses due to the absence of hydrogen bonding.Choose the most appropriate answer from the options given below:
Both Statement I and Statement II are correct.
Both Statement I and Statement II are incorrect.
Statement I is correct, but Statement II is incorrect.
Statement I is incorrect, but Statement II is correct.
To solve this problem, we need to analyze the boiling points of aldehydes, ketones, hydrocarbons, and alcohols.Statement I: Aldehydes and ketones have higher boiling points than hydrocarbons of comparable molecular masses.• This is due to the presence of dipole-dipole interactions in aldehydes and ketones.• Hydrocarbons, being non-polar, only have weak van der Waals forces.• Therefore, Statement I is correct.Statement II: Aldehydes and ketones have lower boiling points than alcohols of similar molecular masses.• Alcohols can form hydrogen bonds due to the presence of the hydroxyl group (OH).• Hydrogen bonding is stronger than dipole-dipole interactions, leading to higher boiling points in alcohols.• Therefore, Statement II is correct.Both statements are correct, which corresponds to Option 1.
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