Chemical Formula class 10th in hindi ❇️ रासायनिक सूत्र (Chemical Formula) ✶ साधारण नमक ➠ NaCl ✶ बेकिंग सोडा ➠ NaHCO₃ ✶ धोवन सोडा ➠ Na₂CO₃·10H₂O ✶ कास…
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