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प्रश्न
The electric cookers have a coating that protects them against fire. The coating is made of ______.
विकल्प
heavy lead
zinc oxide
magnesium oxide
sodium sulphate
MCQ
रिक्त स्थान भरें
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उत्तर
The electric cookers have a coating that protects them against fire. The coating is made of magnesium oxide.
Explanation:
MgO, due to its high melting point, does not catch fire and thus protects the cooker from fire.
shaalaa.com
Electrical Conduction
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