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a. Describe the following giving linked chemical equations: (i) Cannizzaro reaction, (ii) Decarboxy lation. b. Complete the following chemical equations: |
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Answer» Solution :a. Cannizzaro reaction: Aldehydes which do not have an `alpha`- hydrogen atom, undergo self concentrated alkali. In this raction, one molecule of the aldehyde is REDUCED to ALCOHOL while another is oxidised to CARBOXYLIC acid salt. (ii) Decarboxylation: Carboxylic acid LOSE `CO_(2)` to form hydrocarbons when their sodium or potassium salts are heated with sodalime. The reaction is known as de-carboylation. `R-COONa underset(Delta)overset(NaOH+CaO)(to) R -H+Na_(2)CO_(3)`
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