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Physical properties of phenol - class-XII
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Unlike phenol, 2,4-dinitrophenol is soluble in sodium carbonate solution in water because ?
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A
presence of two - $NO _2$ groups in the ring makes 2 , 4 - dinitrophenol a stronger acid than phenol.
💡 Explanation:
Presence of two electron withdrawing $-No _2$ groups in the ring makes 2,4-dinitrophenol a stronger acid than phenol. Hence it react with aqueous $Na _2CO _3$ solution to form sodium salt thus making it soluble in $Na _2CO _3$ .