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प्रश्न
Hydrogen can be prepared with the help of cold water. Give a reaction of hydrogen with:
A monovalent metal
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उत्तर
2K + 2H2O →2KOH + H2
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संबंधित प्रश्न
Why hot concentrated sulphuric acid is not used in the preparation of hydrogen?
How did the name 'hydrogen' originate?
Complete and balance the following reaction.
Zn + H2O →_____________ +___________
Complete and balance the following reaction.
Zn + HCl →_____________ +___________
Select the correct options for the following statement:
The acid _____ is not Used in the laboratory preparation of hydrogen, using zinc and an acid.
Complete and balance the equation:
[General method]
Reactions of metals with steam
Magnesium - Mg + H2O → ______+ _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals - alkali [conc. soln.]
Aluminium - 2Al + 2NaOH + 2H2O → ______ + _______ [g]
2Al + 2KOH + 2H2O → _____ + _____ [g]
Complete and balance the equation:
[Industrial Method - Bosch process]
- Step I - Production of water gas -
\[\ce{C + H2O->[1000°C]}\] [____ + ____] - Δ - Step II - Reduction of steam to hydrogen by carbon monoxide
\[\ce{CO + H2 + H2O->[450°C][Fe2O3]}\] _____ + ____ [g] - Step III - Removal of unreacted carbon dioxide and carbon monoxidefrom the above mixture
KOH + CO2 → _________ + ______
CuCl + CO + 2H2O → _______
State the reactant added to hydrogen to obtain the respective product in following case.
Hydrogen sulphide
Give a balanced equation for the following conversion.
\[\ce{KAlO2<-KOH->K2ZnO2}\]
