Advertisements
Advertisements
प्रश्न
Give reason for the following:
The ratio of hydrogen and oxygen formed at the cathode and anode is 2 : 1 by volume.
उत्तर
As per electrolytic reactions, 4H+1 is needed at the cathode and 4OH− at the anode, and two water molecules are produced at the anode. Hence, for every two molecules of water, two molecules of hydrogen and one molecule of oxygen are liberated at the cathode and anode, respectively.
\[\ce{2H2 ->[H2SO4][Current]2H2[cathode] + O2[anode]}\]
APPEARS IN
संबंधित प्रश्न
Choose the correct answer from the options given below :
The particles present in strong electrolytes are :
(A) Only molecules
(B) Mainly ions
(C) Ions and molecules
(D) Only atoms
What is the difference between:
Electrolytic dissociation and ionisation.
Give reason for the following:
Lead bromide undergoes electrolytic dissociation in the molten state but is a non-electrolyte in the solid state.
Give reason for the following:
In the electrolysis of acidified water, dilute sulphuric acid is preferred to dilute nitric acid for acidification.
Give reason for the following:
Ammonia is unionised in the gaseous state but in the aqueous solution, it is a weak electrolyte.
Give reason for the following:
Carbon tetrachloride is a liquid but does not conduct electricity.
State your observation for the following electrolytic reaction:
Solid copper sulphate is electrolysed between platinum electrodes.
Choose the correct answer from the option given below:
Electrolysis of acidulated water is used in the production of
Cations are formed by ______ of electrons and anions are formed by ______ of electrons.
X - \[\ce{HCl <=> H^{1+} + Cl-}\] (in solution state)
Y - \[\ce{PbBr2 <=> Pb^{2+} + 2Br^{1-}}\] (in molten state)
From the above reaction X or Y, identify the reaction which exhibit:
electrolytic dissociation
