Answers

2016-05-06T16:22:13+05:30
Na2O reacts with water to form sodium hydroxide [NaOH] which turns red litmus paper blue.So Na2O is a basic oxide.
Cl2O7 reacts with water to form perchloric acid [HClO4] that turns blue litmus paper red. So Cl2O7 is an acidic oxide.
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