Which gas is released when sodium carbonate is added to ethanoic acid?
Answer and explanation
Correct answer: Carbon dioxide
Ethanoic acid reacts with sodium carbonate in an acid–carbonate reaction. The products are sodium ethanoate, water, and carbon dioxide: 2CH3COOH + Na2CO3 → 2CH3COONa + H2O + CO2. Effervescence occurs because of the escaping carbon dioxide, which also turns limewater milky. Therefore option A is correct; the other gases are not released in this reaction.
Frequently asked questions
What is the correct answer to this question?
Carbon dioxide
Why is this the correct answer?
Ethanoic acid reacts with sodium carbonate in an acid–carbonate reaction. The products are sodium ethanoate, water, and carbon dioxide: 2CH3COOH + Na2CO3 → 2CH3COONa + H2O + CO2. Effervescence occurs because of the escaping carbon dioxide, which also turns limewater milky. Therefore option A is correct; the other gases are not released in this reaction.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Carbon and its Compounds.
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