Advertisements
Advertisements
प्रश्न
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.
उत्तर
In dilute H2SO4, H+ and `"SO"_4^(2-)` ions are produced due to dissociation. Electric current passes through these ions. During this process H2 gas is produced at the negative side, and O2 gas is produced at the positive side.
APPEARS IN
संबंधित प्रश्न
Write equations for the reactions taking place at the two electrodes (mentioning clearly the name of the electrode) during the electrolysis of Acidified copper sulphate solution with copper electrodes
Define the following term:
Electrolysis
What is the difference between:
Electrolytic dissociation and ionisation.
Give reason for the following:
The ratio of hydrogen and oxygen formed at the cathode and anode is 2 : 1 by volume.
Complete the sentence by choosing correct word given in bracket.
Electrolysis is the passage of ___________________
(electricity / electrons)
Complete the sentence by choosing correct word given in bracket.
through a liquid or a solution accompanied by a ___________ (Physical / chemical) change.
Define the term : Electrolysis
Fill in the black.
The metal plate through which ____________ leaves from an electrolyte is called ____________ .It has ______________ of electrons.
Fill in the blank :
Hydrogen and metallic ions are ____________ because they ____________ electrons.
Name : A base which is not alkali
Name : A non-metallic element which is a conductor of electricity.
Give one example of a substance which contain :
both ions and molecules.
Write down the word or phrase from the given options that will correctly fill in the blanks in the following sentence:
We can expect that pure water _______ normally conduct electricity.
During the electrolysis of molten lead bromide, which of the following takes place?
Element X is a metal with a valency 2. Element Y is a non-metal with a valency 3.
If the compound formed between X and Y is melted and an electric current passed through the molten compound, the element X will be obtained at the ______ and Y at the ______ of the electrolytic cell. (Provide the missing words).
When the sample of copper with zinc impurity is to be purified by electrolysis, the appropriate electrodes are:
