Advertisements
Advertisements
प्रश्न
Select the correct answer to the reactant added, to give the product in the preparation of hydrogen gas.
\[\ce{Al2(SO4)3 + H2}\]
विकल्प
dilute acid
dilute alkali
cold water
conc. alkali
boiling water
conc. acid
steam
Advertisements
उत्तर
Reactant added to get the product:
\[\ce{Al2(SO4)3 + H2:Dilute acid}\]
APPEARS IN
संबंधित प्रश्न
Name the following:
Two metals which give hydrogen with cold water.
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 |
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.
Fe + H2O →_____________ +___________
Complete and balance the equation:
[General method]
Reactions of active metals - cold water
Potassium- K + H2O → ______+ ______ [g]
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Magnesium - Mg + 2HCl → ______+ _______ [g]
State the reactant added to hydrogen to obtain the respective product in following case.
Ammonia
State the reactant added to hydrogen to obtain the respective product in following case.
Hydrogen chloride
Select the correct answer to the reactant added, to give the product in the preparation of hydrogen gas.
\[\ce{NaAlO2 + H2}\]
