In Down's method for the extraction of sodium, the melting point of the electrolyte is lowered by adding:

potassium chloride

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calcium chloride

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both calcium chloride and potassium flouride

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potassium flouride

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Solution

The correct option is C both calcium chloride and potassium flouride
In Down’s method for the extraction of sodium , the melting point of the electrolyte is lowered by adding both calcium chloride and potassium fluoride.

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Similar questions

Q. How will you distinguish among sodium chloride, potassium chloride and calcium chloride ?

Q. Why is the potassium extracted from potassium chloride only by electrolysis?

Q. In the neighbourhood of your school, hard water required for an experiment is not available. Select from the following groups of salts available in your school, a group each member of which, if dissolved in distilled water will make it hard :

(a) Sodium chloride, calcium chloride

(b) Potassium chloride, sodium chloride

(c) Sodium chloride, magnesium chloride

(d) Calcium chloride, magnesium chloride

Q. Which of the following mixture can be separated completely by the process of sublimation ?
(1) fine sand and cane sugar
(2) sodium chloride and potassium permanganate
(3) potassium chloride and ammonium chloride
(4) barium chloride and sodium sulphate

Select from the following group of these salts which may be dissolved in water to make it hard.

(I) Sodium chloride
(II) Sodium sulphate
(III) Calcium chloride
(IV) Calcium sulphate
(V) Potassium chloride
(VI) Magnesium sulphate

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In Down's method for the extraction of sodium, the melting point of the electrolyte is lowered by adding:

The correct option is C both calcium chloride and potassium flourideIn Down’s method for the extraction of sodium , the melting point of the electrolyte is lowered by adding both calcium chloride and potassium fluoride.

The correct option is C both calcium chloride and potassium flouride
In Down’s method for the extraction of sodium , the melting point of the electrolyte is lowered by adding both calcium chloride and potassium fluoride.