alleryStart learning →Baking soda has the chemical formula
A$Na_2CO_3$
B$NaHCO_3$
C$NaOH$
D$NaCl$
Answer & Solution
Correct answer: B. $NaHCO_3$
1. Baking soda is sodium hydrogencarbonate, **$NaHCO_3$**.
2. On heating it gives $Na_2CO_3 + H_2O + CO_2$; the CO₂ makes cakes rise.
3. $Na_2CO_3$ is washing soda; NaOH is caustic soda.
_Source: Karnataka SSLC (KSEEB) Class 10 Science, Ch2 'Acids, Bases and Salts', §2.4_
Keep practising Acids, Bases and Salts
Browse all Acids, Bases and Salts questions for Karnataka SSLC (Class 10), or explore more Science topics.
Related questions
Drop each trait into acid or baseTooth decay begins when the pH of the mouth falls below aboutCommon salt (NaCl) is the raw material for the chlor-alkali process, which produces sodiumThe blue colour of copper sulphate crystals ($CuSO_4\cdot 5H_2O$) is due toPlaster of Paris is obtained by heating gypsum to about 100°C and has the formulaBleaching powder is produced by the action of chlorine onWhich oxide is basic in nature?Bases that are soluble in water are called