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प्रश्न
Give a balanced equation for obtaining hydrogen from?
Steam using a metal – and the reaction is reversible.
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उत्तर
To obtain H2 using boiling water and
Steam and a metal – a reaction is reversible
\[\ce{3Fe + 4H2O ⇌ Fe3O4 + 4H2}\]
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संबंधित प्रश्न
Fill in the blank
Hydrogen is ..................... than air.
Match the statements in Column A with those in Column B.
| Column A | Column B |
|
1. A metal which reacts with cold water to from hydrogen. |
1. Reduction |
| 2. A gas which is inflammable and non-supporter of combustion | 2. Hydrogenation |
|
3. A process in which vanspati ghee is prepared from vegitable oils |
3. oxidation |
|
4. The removal ofhydrogen or addition of oxygen |
4. sodium |
| 5. The addition of hydrogen or removal of oxygen | 5. Hydrogen |
For laboratory preparation of hydrogen, give the following:
chemical equation
Give reason for the following:
Purified and dried hydrogen is collected over mercury.
How did the name 'hydrogen' originate?
Why are the following metals not used in the lab. preparation of hydrogen?
aluminium
Complete and balance the following reaction.
Zn + H2O →_____________ +___________
Complete and balance the equation:
[General method]
Reactions of active metals - cold water
Sodium - 2Na + 2H2O → ______+ _______ [g]
Give a balanced equation for obtaining hydrogen from?
Steam using a trivalent metal
State the reactant added to hydrogen to obtain the respective product in following case.
Water
