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| 1. |
Glucose or sucrose are soluble in water but cyclohexane or benzene (simple six membered ring compounds) are insoluble in water. Explain. |
| Answer» Solution :Glucose containing FIVE and sucrose containing eight-OH GROUPS form H-bonds with water. Due to this extensive intermolecular H-bonding glucose and sucrose are soluble in water inspite of the fact that their molecular masses (180 g `mol^(-1)` and 342 g `mol^(-1)`, respectively) are high. In contrast, benzene (molecular mass = `78 g mol^(-1)` )and cyclohexane (molecular mass `=84 g mol^(-1)`) have low molecular masses. Even then they are insoluble in water. It is because these compounds do not contain -OH groups and hence do not form H-bonds with water. | |