Advertisements
Advertisements
प्रश्न
Why is it necessary to add acid to water before proceeding with electrolysis of 'water'?
उत्तर
Pure water does not conduct electricity because the degree of ionization is low. Thus to make it a good conductor of electricity acid is added to it which will increase the degree of ionization.
APPEARS IN
संबंधित प्रश्न
Complete the sentence by choosing correct word given in bracket.
Electrolysis is the passage of ___________________
(electricity / electrons)
Explain electrolysis of lead bromide.
Explain, why electrolysis is an example of redox reaction?
With reference to the electrolysis of acidulated water, answer the following :
a) why distilled water is a non- electrolyte?
b) What is the electrolytic cell called?
c) State what you would observe at the (i) Cathode (ii) Anode
d) Summarize the electrode reactions.
e) why is electrolysis of acidulated water considered as an example of catalysis?
Choose the correct answer from the option given below:
Which among the following anions will discharge with ease at anode?
Give one example of a substance which contain :
both ions and molecules.
Name the gas released at the cathode when acidulated water is electrolyzed.
Write the equations of the reactions which take place at the cathode and anode when acidified water is electrolyzed.
Choose A, B, C or D to match the descriptions (i) to (v) below . Some alphabets may be repeated.
(A) Non-electrolyte, (B) Strong electrolyte, (C) Weak electrolyte, (D) Metallic conductor
(i) Molten ionic compound
(ii) Carbon tetrachloride
(iii) An aluminium wire
(iv) A solution containing solvent molecules, solute molecules and ions formed by the dissociation of solute molecules
(v) A sugar solution with sugar molecules and water molecules.
Differentiate between the terms strong electrolyte and weak electrolyte (stating any two differences)
