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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
How did the name 'hydrogen' originate?
Complete and balance the following reaction.
Na + H2O →_____________ +___________
Complete and balance the following reaction.
Mg + H2O →_____________ +___________
Starting from hydrogen gas how would you obtain a neutral liquid.
Select the correct options for the following statement:
A metal which reacts with water to give a metallic hydroxide & liberate hydrogen.
Complete and balance the equation:
[General method]
Reactions of active metals - cold water
Potassium- K + H2O → ______+ ______ [g]
Complete and balance the equation:
[General method]
Reactions of metals with steam
Aluminium - 2Al + 3H2O → ______+ _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals - alkali [conc. soln.]
Lead - Pb + 2NaOH → ______ + _______ [g]
Account for the following fact:
Though lead is above hydrogen in the activity series, it does not react with dilute hydrochloric acid or dilutes sulphuric acid.
Select the correct answer to the reactant added, to give the product in the preparation of hydrogen gas.
\[\ce{Al2(SO4)3 + H2}\]
