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Explain the following . (i) Carbon - oxygen bond lengthin formicacid are 1.24 Å and1.36 Å but in sodiumformate both the carbon - oxygenbondshave same valuei.e., 1.27Å (ii)In vapour state, acetic acidshowsa relativemolecular weight of 120. |
Answer» Solution :(i) In formate ION resonace givesriseto identical bondlenghts  Wherears no suchresonance is noticedin formic acid `(H -underset(O)underset(||)(C) - OH)`and thusC - O bondsaredifferentin HCOOH. (ii) Acetion acidundergointermolecularH- BONDING toformdimericstate `(CH_(3)COOH)_(2)`and thusresultsin doublemolecularwieght . |
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