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प्रश्न
Select the correct options for the following statement:
The metal which reacts with steam liberating hydrogen & the reaction is reversible.
विकल्प
Nickel
Sodium
Iron
Iron [III] oxide
Magnesium oxide
उत्तर
Iron
APPEARS IN
संबंधित प्रश्न
Name the following:
Two metals which give hydrogen with cold water.
Give reason for the following:
Purified and dried hydrogen is collected over mercury.
Complete and balance the following reaction.
Na + H2O →_____________ +___________
Complete and balance the following reaction.
Al + H2SO4 →_____________ +___________
State how hydrogen occurs in the free state. Name three compounds containing hydrogen in the combined state.
Complete and balance the equation:
[General method]
Reactions of metals with steam
Iron - 3Fe + 4H2O ⇌ ______+ _______ [g]
Name an element whsich reacts violently with water at room temperature.
Account for the following fact:
Potassium and sodium are not used to react with dilute ‘hydrochloric acid or dilute sulphuric acid in the laboratory preparation of hydrogen.
State the reactant added to hydrogen to obtain the respective product in following case.
Ammonia
Give a reason for the following.
Granulated zinc is preferred to metallic zinc in the preparation of hydrogen using dilute acid.
