Question

what is the use of iron in blast furnace?

Answer 1

what do you mean by dual nature of matter? show that de-Broglie's wave length is inversly propertional to the velocity of the particle.

Answer 2

Iron is extracted from iron ore in a huge container called a blast furnace. Iron ores such as haematite contain iron oxide. The oxygen must be removed from the iron oxide to leave the iron behind. Reactions in which oxygen is removed are called reduction reactions.  

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