On the basis of solubility, how will you distinguish ethanal from hydroxyethanal?
Answer:
They are both soluble in water in all proportions. So in order to determine a difference you'd need to use a more non-polar substance as a solvent. The Ethanol would dissolve better than the Ethylene glycol.
hydroxyethanal will be more soluble than ethanal in water because OH group on hydroxyethanal could have hydrogen bonding with water.
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