AP EAMCET · Chemistry · Chemical Bonding and Molecular Structure
The combination of which of the following gives an ionic compound with maximum covalent character.
- A \(\mathrm{Mg}^{2+}\) and \(\mathrm{Cl}^{-}\)
- B \(\mathrm{Mg}^{2+}\) and \(\mathrm{O}^{2-}\)
- C \(\mathrm{Na}^{+}\)and \(\mathrm{Br}^{-1}\)
- D \(\mathrm{Na}^{+}\)and \(\mathrm{O}^{2-}\)
Answer & Solution
Correct Answer
(B) \(\mathrm{Mg}^{2+}\) and \(\mathrm{O}^{2-}\)
Step-by-step Solution
Detailed explanation
According to the Fajan's rule, smaller the size of cation and larger size anion have greater covalent character.
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