Advertisements
Advertisements
Question
Fill in the blank :
The ions which discharge on the positive electrode during electrolysis ____________electrons. Thus, the ions are said to be _____________.
Solution
The ions which discharge on the positive electrode during electrolysis loose electrons. Thus, the ions are said to be anions.
APPEARS IN
RELATED QUESTIONS
State the electrode reaction at the anode during electrolysis of:
very dilute sulphuric acid.
(a) Copy and complete the following table, which refers to two practical applications of electrolysis.
Anode | Electrolyte | Cathode | |
(i) Silver plating of a spoon | A solution of potassium argentocyanide | ||
(ii) Purification of copper | |||
(iii) Extraction of sodium |
(b) Write the equation taking place at the anode for Q. (a).
Fill in the blank.
The ions which discharge on the negative electrode during electrolysis _____________ electrons, Thus the ions are said to be __________.
Name : A salt which is a weak electrolyte.
Choose the correct answer from the option given below:
Which among the following cations will discharge with ease at cathode?
Write the equations of the reactions which take place at the cathode and anode when acidified water is electrolyzed.
Identify the following reactions as either oxidation or reduction : Fe+3 + e- → Fe+2
Differentiate between the terms strong electrolyte and weak electrolyte (stating any two differences)
State your observation of the following case:
At the cathode when acidified aqueous copper sulphate solution is electrolyzed with copper electrodes.
In the electrolysis method of boron extraction the cathode is made of ______.