Q.Write two points of difference between properties of phenol and ethyl alcohol.

Point 1: Acidic character (section 11.4.4). Phenol shows a genuine, if weak, acidic character: its aqueous solution turns blue litmus red, and it dissolves in aqueous NaOH to form water-soluble sodium phenoxide (though it does NOT react with the weaker base NaHCO3). Ethanol, by contrast, is neutral in aqueous solution -- it does not change litmus colour and does not react with either NaOH or NaHCO3; its very weak acidity is only revealed by reaction with an active metal like sodium, liberating H2 gas, a reaction phenol also gives but which is not diagnostic on its own the way the NaOH/litmus tests are. …

Drawing two clearly distinct points of contrast from section 11.4.4: the acidic-character difference (litmus/NaOH tests) …

• Giving two points that are really the same underlying fact restated (e.g. 'phenol is acidic' and 'phenol reacts with NaOH' are one point, not two) -- the two points should be genuinely distinct properties, such as acidity versus ring-substitution chemistry. …