The two elements required to form substitutional solid solution should not have___________________?
Correct answer: B. Widely differing electronegativity
- A. Same crystalline structure
- B. Widely differing electronegativity
- C. Same valency
- D. Same atomic sizes
Explanation
Substitutional solid solubility is favoured by similar atomic sizes, crystal structures, valencies and electronegativities. Widely different electronegativities promote compound formation rather than simple substitution.
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