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Arrange the following : In increasing order of solubility in water : C_(6)H_(5)NH_(2), (C_(2)H_(5))_(2)NH, C_(2)H_(5)NH_(2). |
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Answer» Solution :Solubility decreases with INCREASE in molecular mass of AMINES due to increase in the size of the HYDROPHOBIC hydrocarbon part and with decrease in the number of H-atoms on the N-atom which undergo H-bonding. Now among the given COMPOUNDS, `C_(6)H_(5)NH_(2)` has the highest molecular mass followed by `(C_(2)H_(5))_(2)NH` while `C_(2)H_(5)NH_(2)` has the lowest molecular mass. Thus, the solubility increases in the order in which molecular mass decreases, i.e., `""C_(6)H_(5)NH_(2) lt (C_(2)H_(5))_(2)NH lt C_(2)H_(5)NH_(2)`. |
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