Which of the following pairs of elements both have acidic oxides?
A) Ca and As
B) Mg and Al
C) B and Li
D) In and Sn
E) P and Se

Name: Which of the following pairs of elements both have acidic oxides? A) Ca and As B) Mg and Al C) B and Li D) In and Sn E) P and Se
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Phosphorus (P) and Selenium (Se) both form acidic oxides. Phosphorus oxide (P4O10) and selenium dioxide (SeO2) are examples of acidic oxides, reacting with water to form phosphoric acid (H3PO4) and selenous acid (H2SeO3), respectively.

Which of the Following Pairs of Elements Both Have Acidic