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प्रश्न
Fill in the blank space by choosing the correct word from the given list.
List: sulphurous, nitric acid, red lead oxide paint, oxygen, phosphoric
Potassium nitrate crystals on heating strongly yield potassium nitrite and ________ gas.
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उत्तर
Potassium nitrate crystals on heating strongly yield potassium nitrite and oxygen gas.
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