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प्रश्न
Write balanced equation of the reaction in the preparation of : hydrogen from a solution of potassium hydroxide [other than by electrolysis].
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उत्तर
Preparation of H2 from potassium hydroxide
\[\ce{2Al + 2KOH + 2H2O ->\underset{\text{Pot. meta aluminate}}{2KAlO2} + 3H2}\]
OR
\[\ce{Zn + 2KOH ->\underset{\text{[Potassium zincate]}}{K2ZnO2} + H2}\]
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संबंधित प्रश्न
Indicate which of the following statement is true and which is false:
The hydrogen molecule is monovalent.
Hydrogen is combustible as well as a supporter of combustion.
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Hydrogen gas is easily liquefiable.
Complete and balance the following equation:
H2+____________→ 2HCI
Give a balanced chemical equation for the reaction.
Multiple Choice Question
Hydrogen is responsible for producing
FILL IN THE BLANK
In nature, hydrogen occurs as a .................. molecule represented as H2
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The compounds of carbon and hydrogen are called .................
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What do you observe when a piece of sodium is dropped into cold water?
How would you obtain ‘hydrogen from sodium hydroxide’ solution other than by electrolysis?
