Which of the following is called baking soda?
Answer & explanation
Correct answer: option 2
The correct answer is Option (2) → $NaHCO_3$
Baking soda is the common name for: Sodium Bicarbonate → Chemical formula: NaHCO₃
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Na₂CO₃ → Sodium carbonate (Washing soda)
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NaOH → Sodium hydroxide (Caustic soda)
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CaCO₃ → Calcium carbonate (Found in chalk, limestone, shells)