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प्रश्न
Iron objects undergo rusting when exposed to _______ and _______.
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उत्तर
Iron objects undergo rusting when exposed to water and oxygen.
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Effects of Chemical Changes: Production of Heat, Light, Sound and Pressure
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संबंधित प्रश्न
Burning of matchstick is an example for chemical reaction caused by _______
_______ undergoes rusting.
In Haber’s process of producing ammonia _______ is used as a catalyst.
Electrolysis of brine solution gives _______ gases.
Decomposition of lead nitrate is an example for a chemical reaction caused by light.
Formation of slaked lime from quicklime is an endothermic reaction.
What happens to the brine during electrolysis?
Lead nitrate produces brown gas on heating.
Photochemistry deals with chemical reactions involving light.
Name the nitrate which does not produce brown gas on heating?
