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प्रश्न
Account for the following fact:
Potassium and sodium are not used to react with dilute ‘hydrochloric acid or dilute sulphuric acid in the laboratory preparation of hydrogen.
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उत्तर
Sodium and potassium with dil. HCl or dil. H2SO4 but reaction is highly explosive and practically not-feasible.
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संबंधित प्रश्न
Fill in the blank
Hydrogen is ..................... than air.
Fill in the blank
Hydrogen is ...................soluble in water.
Name the following:
Two metals which give hydrogen with cold water.
Multiple Choice Question
The metal which reacts with cold water to produce hydrogen is
How do different metals displace hydrogen from water? Explain with the help of equations.
For laboratory preparation of hydrogen, give the following:
method of collection
Give reason for the following:
The end of the thistle funnel should be dipped under acid.
State how hydrogen occurs in the free state. Name three compounds containing hydrogen in the combined state.
Select the correct options for the following statement:
The acid _____ is not Used in the laboratory preparation of hydrogen, using zinc and an acid.
Give a balanced equation for obtaining hydrogen from?
Steam using a metal – and the reaction is reversible.
