MCQ
बेकिंग पाउडर का अणुसूत्र क्या है?
- A$\mathrm{Na}_{2} \mathrm{CO}_{3}$
- B$\mathrm{CaCO}_{3}$
- ✓$\mathrm{NaHCO}_{3}$
- D$\mathrm{NaNO}_{3}$
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