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प्रश्न
Define the following term:
Electrolysis
उत्तर
It is the process of decomposition of a chemical compound in aqueous solutions or in a molten state accompanied by a chemical change using direct electric current.
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संबंधित प्रश्न
Powdered sodium chloride (common salt) does not conduct an electric current, but it does so when ______ or when ______.
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.
Explain electrolysis of lead bromide.
Choose the correct answer from the option given below:
Electrolysis of acidulated water is used in the production of
Give one example of a substance which contain :
Ions only
Choosing only words from the following list, write down the appropriate words to fill in the blanks (a) to (e) below:
anions, anode, cathode, cations, electrode, electrolyte, nickel, voltameter.
To electroplate an article with nickel requires an (a) ________ which must be a solution containing (b) ________ions. The article to be plated is placed as the (c) _________of the cell in which the plating is carried out. The (d)________ of the cell is made from pure nickel. The ions that are attracted to the negative electrode and discharged are called (e)________.
Write the equations of the reactions which take place at the cathode and anode when acidified water is electrolyzed.
Choose A, B, C or D to match the descriptions (i) to (v) below . Some alphabets may be repeated.
(A) Non-electrolyte, (B) Strong electrolyte, (C) Weak electrolyte, (D) Metallic conductor
(i) Molten ionic compound
(ii) Carbon tetrachloride
(iii) An aluminium wire
(iv) A solution containing solvent molecules, solute molecules and ions formed by the dissociation of solute molecules
(v) A sugar solution with sugar molecules and water molecules.
Pure water consists entirely of ______.
Element X is a metal with a valency 2. Element Y is a non-metal with a valency 3.
If Y is a diatomic gas, write the equation for the direct combination of X and Y to form a compound.
