Subjective Type

Define and give an example: Electrolysis.

Solution

Electrolysis is a redox process. The reaction at the cathode involves the reduction of cations as they gain of electrons while the reaction at anode involves oxidation of anions as they lose electrons to become neutral.

Example: Dissociation of sodium chloride during electrolysis.
$$NaCl \rightleftharpoons Na^+ +Cl^-$$
Cathode: $$Na^+ +e^- \to Na $$ ( reduction)
$$Cl^- e^- \to Cl$$ ( oxidation)
$$Cl +Cl \to Cl_2$$
Overall reaction: $$2NaCl \to 2Na+Cl_2$$

SIMILAR QUESTIONS

Electrochemistry

On electrolysis of dil. sulphuric acid using Platinum (Pt) electrode, the product obtained at anode will be

Electrochemistry

During electrolysis of an aqueous of sulphuric acid between platinum electrodes, two types of anions migrate towards the anode but only one of them is discharged. Name the two anions.

Electrochemistry

During electrolysis of an aqueous of sulphuric acid between platinum electrodes, two types of anions migrate towards the anode but only one of them is discharged. Name the main product of the discharge of anion at the anode and write the anode reaction.

Electrochemistry

During electrolysis of an aqueous of sulphuric acid between platinum electrodes, two types of anions migrate towards the anode but only one of them is discharged. Name the product at the cathode and write the reaction.

Electrochemistry

During electrolysis of an aqueous of sulphuric acid between platinum electrodes, two types of anions migrate towards the anode but only one of them is discharged. Why this electrolysis is considered as an example of catalysis?

Electrochemistry

State the electrode reaction at the anode during electrolysis of very dilute sulphuric acid.

Electrochemistry

Name the gas released at cathode when acidulated water is electrolyzed.

Electrochemistry

When an aqueous solution of $$H_{2}SO_{4}$$ is electrolysed, the product at anode is:

Electrochemistry

The electrolytic decomposition of dilute sulphuric acid with platinum electrode, cathodic reaction is :

Electrochemistry

During electrolysis of $$H_2SO_4 (aq)$$ with high charge density, $$H_2S_2O_8$$ formed as by product. In such electrolysis $$22.4\,L \, H_2 (g)$$ and $$8.4\,L \, O_2(g) $$ liberated at $$1$$ atm and $$273\,K$$ at electrode. The moles of $$H_2S_2O_8$$ formed is:

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