A) \[C{{l}_{2}}{{O}_{7}}>S{{O}_{2}}>{{P}_{4}}{{O}_{10}}\]
B) \[{{K}_{2}}O>CaO>MgO\]
C) \[C{{O}_{2}}>{{N}_{2}}{{O}_{5}}>S{{O}_{3}}\]
D) \[N{{a}_{2}}O>MgO>A{{l}_{2}}{{O}_{3}}\]
Correct Answer: A
Solution :
[a] Acidic character of oxide Non-metallic nature of element. Non-metallic character increases along the period. Hence order of acidic character is \[C{{l}_{2}}{{O}_{7}}>S{{O}_{2}}>{{P}_{4}}{{O}_{10}}.\]
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