Advertisements
Advertisements
प्रश्न
What is the difference between:
Electrolytic dissociation and ionisation.
उत्तर
| Dissociation | Ionisation | |
| (1) | Separation of ions which are already present in an ionic compound. | Formation of positively or negatively charged ions from molecules which are not initially in the ionic state. |
| (2) | Electrovalent compounds show dissociation, e.g., potassium chloride, lead bromide, etc. \[\ce{KCl -> K+ + Cl-}\] |
Polar covalent compounds show ionisation, e.g., HCl, NH4OH, etc. \[\ce{HCl->[H2O]H+ + Cl-}\] |
APPEARS IN
संबंधित प्रश्न
Give reason for the following:
In the electrolysis of acidified water, dilute sulphuric acid is preferred to dilute nitric acid for acidification.
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.
The ions which discharge on the negative electrode during electrolysis _____________ electrons, Thus the ions are said to be __________.
Fill in the blank :
Non-metallic ions are _____________ because they _____________ electrons.
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.
Name the gas released at the cathode when acidulated water is electrolyzed.
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).
108 g of silver (molar mass 108 g mol-1) is deposited at cathode from AgNO3 (aq) solution by a certain quantity of electricity. The volume (in L) of oxygen gas produced at 273 K and 1 bar pressure from water by the same quantity of electricity is ______.
X - \[\ce{HCl <=> H^{1+} + Cl-}\] (in solution state)
Y - \[\ce{PbBr2 <=> Pb^{2+} + 2Br^{1-}}\] (in molten state)
From the above reaction X or Y, identify the reaction which exhibit:
electrolytic dissociation
