Can you explain the answer of this question below:Which of the following is a use of an electrolytic decomposition reaction?A:Photosynthesis in plants.B:They are used in photography.C:To obtain metals from their ores.D:To produce salts.The answer is c.

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Can you explain the answer of this question below:

Which of the following is a use of an electrolytic decomposition reaction?

A:
Photosynthesis in plants.
B:
They are used in photography.
C:
To obtain metals from their ores.
D:
To produce salts.

The answer is c.

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Test: Combination And Decomposition Reaction

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Can you explain the answer of this question below:Which of the followi...

Electrolytic decomposition reactions are used to obtain metals from their chloride or oxide ores.

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Can you explain the answer of this question below:Which of the followi...

Higly reactove metals, such as sodium and potassium, is obtained in the form of their chlorides (NaCl, KCl). The oxides of this metal can't be converted into pure metals by using carbon as it is done with moderately reactive element. This is because these metals have more affinity towards oxygen then carbon.

Moderately reactive element -
MgO + C ---> Mg + CO

Highly reactive element
Na2O + C ---> No reaction

So, highly reactove element can't be obtained through normal reduction by carbon. To obatain highly reactive elements from their ore we have to do electrolytic reduction of their chlorides.

In this electrolytic reduction, molten metal chlorides (such as NaCl) are taken as electrolyte solution. When electricity is passed, electrons are provided to elements and metal is obtained at cathode (-ve charged electrode) and chlorine is liberated at anode (+ve charged electrode).

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Which of the following is a use of an electrolytic decomposition reaction?

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Can you explain the answer of this question below:Which of the following is a use of an electrolytic decomposition reaction?A:Photosynthesis in plants.B:They are used in photography.C:To obtain metals from their ores.D:To produce salts.The answer is c.

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