What products are formed when an acid reacts with a metal hydrogen carbonate?
Answer and explanation
Correct answer: Salt, water, and carbon dioxide
The governing reaction pattern is acid plus metal hydrogen carbonate, which produces a salt, water, and carbon dioxide. For example, hydrochloric acid reacts with sodium hydrogen carbonate as: HCl + NaHCO₃ → NaCl + H₂O + CO₂. Hence option A is correct. Hydrogen gas, oxygen, or a free metal are not the products of this carbonate reaction, so the other options are incorrect.
Frequently asked questions
What is the correct answer to this question?
Salt, water, and carbon dioxide
Why is this the correct answer?
The governing reaction pattern is acid plus metal hydrogen carbonate, which produces a salt, water, and carbon dioxide. For example, hydrochloric acid reacts with sodium hydrogen carbonate as: HCl + NaHCO₃ → NaCl + H₂O + CO₂. Hence option A is correct. Hydrogen gas, oxygen, or a free metal are not the products of this carbonate reaction, so the other options are incorrect.
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.
