MCQ
Baking soda is a mixture of:
- ASodium carbonate and acetic acid.
- BSodium carbonate and tartaric acid.
- CSodium hydrogen carbonate and tartaric acid.
- DSodium hydrogen carbonate and acetic acid.
Explanation:
Baking soda is a mixture of sodium hydrogen carbonate (NaHCO3) and a mild edible tartaric acid.
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$\text{Mg(s)}\ +\ \text{CuO(s)}\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ }\text{MgO(s)}\ +\ \text{Cu(s)}$
This equation represents:4NH3(g) + 5O2 (g) → 4NO(g) + 6H2O(g)