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प्रश्न
Choose the correct option:
Elements which show unique nature in the preparation of hydrogen are:
विकल्प
Na, K, Li
Mg, Ca, Ba
Al, Zn, Pb
Fe, Cu, Ag
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उत्तर
Al, Zn, Pb
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संबंधित प्रश्न
Which metal is preferred for the preparation of hydrogen?
from acid?
Complete the following word equation:
Sodium hydroxide + zinc → hydrogen + _________
For laboratory preparation of hydrogen, give the following:
method of collection
Give reason:
A candle brought near the mouth of a jar containing hydrogen gas starts burning but is extinguished when pushed inside the jar.
Starting from hydrogen gas how would you obtain a neutral liquid.
Starting from hydrogen gas how would you obtain a basic gas.
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 - alkali [conc. soln.]
Lead - Pb + 2NaOH → ______ + _______ [g]
Give a balanced equation for obtaining hydrogen from?
Steam using a trivalent metal
Select the correct answer to the reactant added, to give the product in the preparation of hydrogen gas.
\[\ce{Fe3O4 + H2}\]
