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Question : 7
Total: 30
Arrange the following compounds 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
Solution:
Increasing order of solubility of C 6 H 5 N H 2 , ( C 2 H 5 ) 2 N H and C 2 H 5 N H 2 are as follows:
C 6 H 5 N H 2 < ( C 2 H 5 ) 2 N H < C 2 H 5 N H 2
This is because as the number of H bonded to N increases the H -bonding increases which increases the solubility in water.
C 6 H 5 N H 2 is least soluble due to presence of hydrophobic benzene ring in the skeleton of structure.
This is because as the number of
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