12th Class Chemistry Aldehydes, Ketones and Carboxylic Acids / ऐल्डिहाइड, कीटोन तथा कर्बोक्सिलिक अम्ल Question Bank 12th CBSE Chemistry Aldehydes, Ketones

  • question_answer
    Boiling points of carbonyl compounds lie between the parent alkanes and corresponding alcohols. Justify.

    Answer:

                    Alkanes are non-polar in nature and the attractive forces are weak van der Waals' forces. In alcohols, intermolecular hydrogen bonding is present in the molecules. In the carbonyl compounds, only dipolar forces exist in the molecules It is therefore, quite obvious that the attractive forces in carbonyl compounds are more than in alkanes and less in comparison to alcohols. Thus justifies the trend in boiling point values in the members of these families. For more details, consult section 13.6.


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