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प्रश्न
Which metal is preferred for the preparation of hydrogen?
from acid?
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उत्तर
Magnesium, aluminum, zinc, and iron.
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संबंधित प्रश्न
Hydrogen is ______ than air.
TRUE \ FALSE
reacts with hot water to form copper oxide and hydrogen.
Give a reason for the following:
Zinc granules are used in the lab preparation of hydrogen.
Where does hydrogen occur in a free state?
Complete and balance the following reaction.
Zn + H2O →_____________ +___________
Complete and balance the following reaction.
Zn + HCl →_____________ +___________
Select the correct options for the following statement:
The metal used as a catalyst in hydrogenation of oils.
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Aluminium - 2Al + 3H2SO4 → ______+ _______ [g]
Select the correct answer to the reactant added, to give the product in the preparation of hydrogen gas.
\[\ce{Al2(SO4)3 + H2}\]
Give a balanced equation for the following conversion.
\[\ce{NH3<-H2->H2S}\]
