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Completely anhydrous acetic has molecula...

Completely anhydrous acetic has molecular mass of 120. Explain.

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Completely anhydrous acetic acid exists as a dimer in the vapour phase, due to intermolecular hydrogen bonding. Therefore, its molecular mass is 120 amu. However, in aqueous solution, it dissociates to release `H^(+)` and no longer behaves as a dimer.
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DINESH PUBLICATION-CARBOXYLIC ACIDS -ADDITIONAL IMPORTANT QUESTIONS
  1. m-Hydroxybenzoic acid is a stronger acid than benzoic acid while p-hyd...

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  2. Why does not formic acid form an anhydride upon heating?

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  3. Completely anhydrous acetic has molecular mass of 120. Explain.

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  4. Why is peroxy acid weaker than carboxylic acid ?

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  5. Why is acetyl chloride a better acetylating agent than acetic acid ?

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  6. Chloroformic acid does not exist while chloroethylformate exists. Expl...

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  7. Carbon-oxygen bond lengths in formic acid are different but are the sa...

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  8. Phenate ion has more number of contributing structures than benzoate i...

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  9. Tertiary butyl benzene does not give benzoic acid when oxidised with K...

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  10. Fluorine is more electronegative than chlorine but p-fluorobenzoic aci...

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  11. CH(3)COO^(-) ion is more stable than C(2)H(5)O^(-) ion. Assign reason.

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  12. Peroxyacetic acid is a weaker acid than acetic acid. Explain.

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  13. Why are boiling of aldehydes and ketones lower than those of the corre...

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  14. Which out of each pair is expected to be a stornger acid ? (a) CH(3)...

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  15. What is glacial acetic acid ? Why is it so named ?

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  16. How will you prepare 2-methylbutanoic acid from butan-2-01 ?

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  17. How will you convert propionic acid to acetic acid ?

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  18. How will you prepare butanoic acid from 1-bromopropane?

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  19. Suggest an oxidising agent to convert (CH(3))(2)C=CHCOCH(3)" to "(CH(3...

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  20. Explain Why : (i) Carboxylic acids are stronger acids than alcohols....

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