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प्रश्न
Why are the following metals not used in the lab. preparation of hydrogen?
sodium
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उत्तर
Sodium reacts violently with acid.
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संबंधित प्रश्न
Fill in the blank
Hydrogen reacts with metal oxides to form ............and....................
Multiple Choice Question
Water gas is a mixture of
Give reason for the following:
Dilute sulphuric acid cannot be replaced by concentrated acid in the preparation of hydrogen.
Why are the following metal not used in the lab. preparation of hydrogen?
iron
Complete and balance the following reaction.
Mg + H2O →_____________ +___________
Select the correct options for the following statement:
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Complete and balance the equation:
[General method]
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Aluminium - 2Al + 3H2SO4 → ______+ _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals - alkali [conc. soln.]
Aluminium - 2Al + 2NaOH + 2H2O → ______ + _______ [g]
2Al + 2KOH + 2H2O → _____ + _____ [g]
Give a balanced equation for obtaining hydrogen from?
Steam using a trivalent metal
Give a reason for the following.
Granulated zinc is preferred to metallic zinc in the preparation of hydrogen using dilute acid.
