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प्रश्न
Why hot concentrated sulphuric acid is not used in the preparation of hydrogen?
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उत्तर
Conc. sulphuric acid is not used in the preparation of hydrogen as it will produce sulphur dioxide.
Zn + 2H2SO4 →ZnSO4 + SO2 + 2H2O
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संबंधित प्रश्न
Which metal is preferred for the preparation of hydrogen?
from acid?
For laboratory preparation of hydrogen, give the following:
method of collection
Complete and balance the following reaction.
Fe + H2O →_____________ +___________
Complete and balance the following reaction.
Al + KOH + H2O→_____________ +___________
Starting from hydrogen gas how would you obtain a basic gas.
Select the correct options for the following statement:
The product formed on combustion of hydrogen in air is ___.
Complete and balance the equation:
[General method]
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Magnesium - Mg + 2HCl → ______+ _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Zinc - Zn + 2HCl → ______ + _______ [g]
State the reactant added to hydrogen to obtain the respective product in following case.
Water
State the reactant added to hydrogen to obtain the respective product in following case.
Hydrogen sulphide
