प्रश्न 48
मध्यममौलिक प्रश्नWhat is the chemical formula of baking soda?
उत्तर और हल देखें
सहीसही नहींउत्तर B
सही उत्तर: B
हल
Baking soda is sodium hydrogen carbonate, written NaHCO₃.
NaCl is common salt and CaCO₃ is limestone or marble.
Na₂CO₃ is sodium carbonate, which is washing soda — a different substance with a similar name and a similar-looking formula.
ध्यान देने योग्य
Washing soda and baking soda are the pair most often swapped. The hydrogen in NaHCO₃ is the difference, and it is why baking soda releases carbon dioxide when heated.
- संकल्पना
- Formulae of common household chemicals
- सामान्य समयसामान्य
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