TS EAMCET · Chemistry · Classification of Elements and Periodicity in Properties
Among the oxides \(\mathrm{SiO}_2, \mathrm{SO}_2, \mathrm{Al}_2 \mathrm{O}_3\) and \(\mathrm{P}_2 \mathrm{O}_3\), the correct order of acidic strength is
- A \(\mathrm{SiO}_2 \lt \mathrm{SO}_2 \lt \mathrm{Al}_2 \mathrm{O}_3 \lt \mathrm{P}_2 \mathrm{O}_3\)
- B \(\mathrm{SO}_2 \lt \mathrm{P}_2 \mathrm{O}_3 \lt \mathrm{Al}_2 \mathrm{O}_3 \lt \mathrm{SiO}_2\)
- C \(\mathrm{Al}_2 \mathrm{O}_3 \lt \mathrm{SiO}_2 \lt \mathrm{P}_2 \mathrm{O}_3 \lt \mathrm{SO}_2\)
- D \(\mathrm{Al}_2 \mathrm{O}_3 \lt \mathrm{P}_2 \mathrm{O}_3 \lt \mathrm{SiO}_2 \lt \mathrm{SO}_2\)
Answer & Solution
Correct Answer
(C) \(\mathrm{Al}_2 \mathrm{O}_3 \lt \mathrm{SiO}_2 \lt \mathrm{P}_2 \mathrm{O}_3 \lt \mathrm{SO}_2\)
Step-by-step Solution
Detailed explanation
In periodic table when we more from left to right their non metallic character increases so acidity of their oxide is increases. \(\mathrm{SO}_2\gt\mathrm{P}_2 \mathrm{O}_3\gt\mathrm{SiO}_2\gt\mathrm{Al}_2 \mathrm{O}_3\)
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