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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 |
Complete the following word equation:
Sodium hydroxide + zinc → hydrogen + _________
For laboratory preparation of hydrogen, give the following:
method of collection
For laboratory preparation of hydrogen, give the following:
fully-labeled diagram
Which test should be made before collecting hydrogen in a gas jar?
Complete and balance the following reaction.
Fe + HCl →_____________ +___________
Select the correct options for the following statement:
The metal used as a catalyst in hydrogenation of oils.
Select the correct options for the following statement:
The product formed on combustion of hydrogen in air is ___.
State why hydrogen is not prepared in the laboratory by the action of sodium with cold water.
