Advertisements
Advertisements
प्रश्न
Give a balanced equation for the following conversion.
\[\ce{ZnO<-H2O->Fe3O4}\]
Advertisements
उत्तर
\[\ce{Zn + H2O->ZnO + H2}\]
\[\ce{3Fe + 4H2O⇌Fe3O4 + 4H2}\]
APPEARS IN
संबंधित प्रश्न
Hydrogen may be prepared in the laboratory by the action of a metal on an acid.
Which of the metals copper, zinc, magnesium or sodium would be the most suitable?
Hydrogen may be prepared in the laboratory by the action of a metal on an acid.
Which of the acids dilute sulphuric, concentrated sulphuric, dilute nitric acid and concentrated nitric acid would you choose? Explain why you would not use the acids you reject.
Why are the following metals not used in the lab. preparation of hydrogen?
sodium
Complete and balance the following reaction.
Na + H2O →_____________ +___________
Complete and balance the following reaction.
Zn + H2O →_____________ +___________
Complete and balance the following reaction.
Fe + H2O →_____________ +___________
State how hydrogen occurs in the free state. Name three compounds containing hydrogen in the combined state.
Give reason for the following:
In the preparation of hydrogen by electrolysis of water – the distilled water used is acidified.
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 → _______
Select the correct answer to the reactant added, to give the product in the preparation of hydrogen gas.
\[\ce{Fe3O4 + H2}\]
