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प्रश्न
Which metal is preferred for the preparation of hydrogen?
from water?
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उत्तर
Reactive metals such as potassium, sodium, and calcium.
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संबंधित प्रश्न
For laboratory preparation of hydrogen, give the following:
materials used
For laboratory preparation of hydrogen, give the following:
chemical equation
Hydrogen may be prepared in the laboratory by the action of a metal on an acid.
Which of the metals copper, zinc, magnesium or sodium would be the most suitable?
Why are the following metals not used in the lab preparation of hydrogen?
calcium
Complete and balance the following reaction.
Fe + HCl →_____________ +___________
Starting from hydrogen gas how would you obtain a metal by reduction of its heated oxide.
Complete and balance the equation:
[General method]
Reactions of metals with dilute acids
Zinc - Zn + 2HCl → ______ + _______ [g]
Complete and balance the equation:
[General method]
Reactions of metals - alkali [conc. soln.]
Lead - Pb + 2NaOH → ______ + _______ [g]
State the reactant added to hydrogen to obtain the respective product in following case.
Water
Give a reason for the following.
Granulated zinc is preferred to metallic zinc in the preparation of hydrogen using dilute acid.
