Phenol is neutral to litmus as it reacts with NaOH to form salts. Carboxylic acids and ethanol are also neutral to litmus due to their chemical properties.
Phenol is neutral to litmus because it reacts with aqueous sodium hydroxide (NaOH) to form salts (ArONa) and water. In the presence of NaOH, the phenoxide ion is formed from phenol, making it neutral to litmus.
Comparatively, carboxylic acids like Sodium Hydroxide (NaOH) are acidic and will turn blue litmus red, indicating acidity.
Ethanol, while slightly acidic, is not as acidic as phenol or carboxylic acids and does not react significantly with NaOH, thus Ethanol is also neutral to litmus.
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