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secondary 4 | Chemistry
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Why is the answer B?
Date Posted: 3 years ago
Views: 443
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Any metal oxides or metal hydroxide are bases. The bases which are soluble in water are alkalis. Lead(II) oxide is a base that is insoluble in water while calcium oxide is an alkali that dissolves in water to give aq. calcium hydroxide.
Date Posted:
3 years ago
i think it’s PbO because it’s amphoteric? neither basic nor acidic
do correct me if i’m wrong
do correct me if i’m wrong
You're right, lead(II) oxide is an amphoteric oxide. However, amphoteric oxide means it can either act as a base or an acid, so another reactant in the reaction determines the nature of the amphoteric oxide whether it's an acid or a base. Since ethanoic acid is an acid, thus, lead(II) oxide serves as a base in this reaction.
i seeeeee thank u!
You're welcome.
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