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प्रश्न
Choose the correct answer from the option given below:
Which among the following anions will discharge with ease at anode?
विकल्प
Cl-
I-
OH-
\[\ce{SO^{2-}_{4}}\]
उत्तर
OH-
APPEARS IN
संबंधित प्रश्न
State the electrode reaction at the anode during electrolysis of:
magnesium chloride (molten).
Give reason for the following:
Lead bromide undergoes electrolytic dissociation in the molten state but is a non-electrolyte in the solid state.
(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).
Complete the sentence by choosing correct word given in bracket.
Electrolysis is the passage of ___________________
(electricity / electrons)
Write down the changes that will be seen in each instance and explain the reason behind them.
Dilute H2SO4 was taken in an electrolytic cell and an electric current was passed through it.
Fill in the black.
The metal plate trough which current enters into an electrolyte is called ___________. It has ____________ of electrons.
Give one example of a substance which contain :
Ions only
Copy and complete the following table which refers to two practical applications of electrolysis.
| Anode | Electrolyte | Cathode | |
| Silver plating of a spoon | Solution of potassium argentocyanide | ||
| Purification of copper |
Choose the option to match the description given below. Some letters may be repeated.
A sugar solution with sugar molecules and water molecules.
Give reason for the following:
Potassium is not extracted by electrolysis of its aqueous salt solution.
