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प्रश्न
In electrolysis of water, why is the volume of gas collected over one electrode double that of gas collected over the other electrode?
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उत्तर
The balanced chemical equation for the electrolysis of water is:
\[\ce{\underset{Water}{2H2O_{(l)}} ->[Electricity][H2SO4] \underset{Hydrogen}{2H2_{(g)}} + \underset{Oxygen}{O2_{g)}}}\]
It can be observed from the balanced chemical equation that the volumes of hydrogen and oxygen produced during electrolysis are in the ratio 2 : 1. Thus, the volume of hydrogen gas collected in the process is double that of oxygen.
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संबंधित प्रश्न
Complete and balance the following equation:
NaOH + ............ 
Na2 SO4 + H2O
Which of the following does not involve a chemical reaction?
Write word equation for the following skeletal equation:
\[\ce{NaOH + H2SO4 -> Na2SO4 + H2O}\]
Show the formation of Na2O by the transfer of electrons.
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Write the equation.
Check whether it is balanced, if not balance it.
Find the weights of reactants and products.
State the law which this equation satisfies.
Write word equation for the following molecular equation:
\[\ce{NH3 [g] + HCl [g] ⇌ NH4Cl [s]}\]
Word equation:
State which characteristic is observed in the above reaction.
Give an-example of a similar above characteristic, seen between two other gaseous reactants.
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Give one example in the case where supplying energy [given below] is necessary for a chemical reaction.
Heat energy
Give word equation for the following chemical reaction and give the names of the product formed.
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