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प्रश्न
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)________.
उत्तर
To electroplate an article with nickel requires an (a) Electrolyte which must be a solution containing (b) Nickel ions. The article to be plated is placed as the (c) cathode of the cell in which the plating is carried out. The (d) anode of the cell is made from pure nickel. The ions that are attracted to the negative electrode and discharged are called (e) Cations
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संबंधित प्रश्न
Fill in the black.
The metal plate trough which current enters into an electrolyte is called ___________. It has ____________ of electrons.
Fill in the blank :
The ions which discharge on the positive electrode during electrolysis ____________electrons. Thus, the ions are said to be _____________.
Fill in the blank :
Hydrogen and metallic ions are ____________ because they ____________ electrons.
Fill in the blank :
Non-metallic ions are _____________ because they _____________ electrons.
Copy and complete the following sentence :
With platinum electrodes, hydrogen is liberated at the ______and oxygen at the _________ during the electrolysis of acidified water.
Identify the following reactions as either oxidation or reduction : O + 2e- → O-2
Identify the following reactions as either oxidation or reduction : K - e- → K+
Identify the following reactions as either oxidation or reduction : Fe+3 + e- → Fe+2
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 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).
