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प्रश्न
Magnesium ribbon is rubbed before burning because it has a coating of ____________.
विकल्प
basic magnesium carbonate
basic magnesium oxide
basic magnesium sulphide
basic magnesium chloride
MCQ
रिक्त स्थान भरें
उत्तर
Magnesium ribbon is rubbed before burning because it has a coating of basic magnesium carbonate.
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