Which of the following oxides is acidic in nature? (a) B203 (b) A1203 (c) Ga203 (d) In203

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Shad A Khan

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use fajan’s rule in this case as you can see the charge on cation and anion are the same so, all depends on the size of cation. according to fajan’s rule as the size of cation increases the polarizing power decreases and covalent character decreases. Or ionic character increases. Hence...
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use fajan’s rule in this case as you can see the charge on cation and anion are the same so, all depends on the size of cation. according to fajan’s rule as the size of cation increases the polarizing power decreases and covalent character decreases. Or ionic character increases. Hence basic character increases down the group. BeO>MgO>CaO>BaO (acidic order) read less
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