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प्रश्न
Starting from hydrogen gas how would you obtain a metal by reduction of its heated oxide.
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उत्तर
Reduction of Fe2O3 (iron oxide) on heating to metal iron.
\[\ce{Fe2O3 + 3H2 ->\underset{\text{Reduced to metal}}{2Fe} + 3H2O}\]
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संबंधित प्रश्न
Give a reason for the following:
Zinc granules are used in the lab preparation of hydrogen.
Why are the following metals not used in the lab preparation of hydrogen?
calcium
Why are the following metals not used in the lab. preparation of hydrogen?
aluminium
Complete and balance the following reaction.
Na + H2O →_____________ +___________
Complete and balance the equation:
[General method]
Reactions of metals with steam
Magnesium - Mg + H2O → ______+ _______ [g]
How did the name ‘hydrogen’ originate? How does hydrogen occur in the combined state?
State why hydrogen is not prepared in the laboratory by the action of sodium with cold water.
State the reactant added to hydrogen to obtain the respective product in following case.
Ammonia
State the reactant added to hydrogen to obtain the respective product in following case.
Water
Give a balanced equation for the following conversion.
\[\ce{MgCl2<-HCl->FeCl2}\]
