If an acid reacts with both a metal carbonate and a metal hydrogen carbonate, which common product is formed in both cases?
Answer and explanation
Correct answer: Carbon dioxide
Both reactions release carbon dioxide because the carbonate or hydrogen carbonate ion reacts with hydrogen ions from the acid. The general equations are metal carbonate + acid → salt + water + CO₂ and metal hydrogen carbonate + acid → salt + water + CO₂. Therefore A is the common product. Hydrogen is associated with some acid-metal reactions, while oxygen and ammonia are not products of these carbonate reactions.
Frequently asked questions
What is the correct answer to this question?
Carbon dioxide
Why is this the correct answer?
Both reactions release carbon dioxide because the carbonate or hydrogen carbonate ion reacts with hydrogen ions from the acid. The general equations are metal carbonate + acid → salt + water + CO₂ and metal hydrogen carbonate + acid → salt + water + CO₂. Therefore A is the common product. Hydrogen is associated with some acid-metal reactions, while oxygen and ammonia are not products of these carbonate reactions.
Which subject and chapter does this question cover?
This is a Class 10 Science question. Chapter: Chemical Substances – Nature and Behaviour. Topic: Acids, Bases, and Salts.
