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प्रश्न
State the reactant added to hydrogen to obtain the respective product in following case.
Ammonia
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उत्तर
Reactant added to obtain:
Ammonia: Nitrogen and hydrogen.
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संबंधित प्रश्न
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 |
TRUE \ FALSE
reacts with hot water to form copper oxide and hydrogen.
Hydrogen gas is collected by the downward displacement of water. Give reason ?
For laboratory preparation of hydrogen, give the following:
materials used
Give reason for the following:
Dilute sulphuric acid cannot be replaced by concentrated acid in the preparation of hydrogen.
Choose the correct option:
Elements which show unique nature in the preparation of hydrogen are:
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 active metals - cold water
Sodium - 2Na + 2H2O → ______+ _______ [g]
Name an element whsich reacts violently with water at room temperature.
Give a balanced equation for the following conversion.
\[\ce{MgCl2<-HCl->FeCl2}\]
