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प्रश्न
In Haber’s process of producing ammonia _______ is used as a catalyst.
विकल्प
nitrogen
hydrogen
iron
nickel
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उत्तर
In Haber’s process of producing ammonia, iron is used as a catalyst.
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संबंधित प्रश्न
Burning of matchstick is an example for chemical reaction caused by _______
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