A neutral oxide does not react with acids or with alkalis and dissolves to give a pH of 7. Which of the following is a neutral oxide?
Question 1 Report
A neutral oxide does not react with acids or with alkalis and dissolves to give a pH of 7. Which of the following is a neutral oxide?
Answer Details
A neutral oxide reacts with neither acids nor alkalis and gives a solution of pH 7. Of the substances listed, water is itself the oxide of hydrogen, H2O, and fits exactly, since pure water has pH 7 and is neither acid nor base in this classification.
Sodium oxide is basic and dissolves to give sodium hydroxide at about pH 13. Sulfur dioxide is acidic and forms sulfurous acid. Aluminium oxide is amphoteric, reacting with both acids and alkalis; its near-neutral pH in water reflects only its very low solubility, not neutrality. Carbon monoxide and nitrogen monoxide are the other neutral oxides worth remembering.
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