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What role does the molecular interaction...

What role does the molecular interaction play in solution of alcohol and water?

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There is strong hydrogen bonding in alcohol molecules as well as water molecules. The intermolecular forces both in alcohol ans water are H-bonds. When alcohol ans water are mixed. They from solution because of formation of H-bonds between alcohol and `H_(2)O` molecules but these interactions are weaker and less extensive than those in pure water. Hence, they show ive deviation from ideal behaviour.
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