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Question
Define isomorphism.
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Solution
Two or more substances having the same crystal structures are called isomorphous substances, and the phenomenon is called isomorphism. For example, NaF and MgO, NaNO3 and CaCO3 are isomorphous pairs and have the same atomic ratios, 1 : 1 and 1 : 1 : 3, respectively, of the constituent atoms.
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