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(i) What happens when m-cresol is treated with acidic solution of sodium dichromate? (ii) Formic acid is more stronger than acetic acid. Justify this statement. |
Answer» Solution :(i) When m-cresol is treated with ACIDICSOLUTION of sodium DICHROMATE it gives 4-hydroxy benzoic acid.  The electron releasing groups (+I groups) increase the relative charge on the carboxylate ion and destabilise it and hence the loss of protonbecomes difficult. `+I` groups are `CH_(3), -C_(2)H_(5), -C_(3)H_(7)` `underset("Formic acid")(H-overset(overset(O)(||))(C)-OH)>underset("ACETIC acid")(CH_(3)-overset(overset(O)(||))(C)-OH)>underset("Propionic acid")(CH_(3)-CH_(2)-COOH)` |
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