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Sea water contains small quantities of M...

Sea water contains small quantities of `MgCl_(2) and MgS_(4)` Sea water is treated with slaked limeto precipitate the dissolved salty as `Mg(OH)_(2)` The `Mg(OH)_(2)` is dissolved in a little quantity of HCI and `MgCl_(2)6H_(2)O` is crystallised from solution. The hydrated `MgCl_(2)` is heated in a current of dry HCl gas to get anhydrous `MgCl_(2)` Pused anhydrous `MgCl_(2)` is subjected to electrolysis. Magnesium deposited at cathode.
Magnesium metal is extracted from

A

Carnalite

B

Magnesite

C

Sea water

D

All of these

Text Solution

Verified by Experts

The correct Answer is:
D
Mg is the metal present in the ores Carnallite, Magnesite and sea water as sulphates and chlorides
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Sea water contains small quantities of MgCl_(2) and MgS_(4) Sea water is treated with slaked limeto precipitate the dissolved salty as Mg(OH)_(2) The Mg(OH)_(2) is dissolved in a little quantity of HCI and MgCl_(2)6H_(2)O is crystallised from solution. The hydrated MgCl_(2) is heated in a current of dry HCl gas to get anhydrous MgCl_(2) Pused anhydrous MgCl_(2) is subjected to electrolysis. Magnesium deposited at cathode. In the Hanging method magnesia is a reved by using

Sea water contains small quantities of MgCl_(2) and MgS_(4) Sea water is treated with slaked limeto precipitate the dissolved salty as Mg(OH)_(2) The Mg(OH)_(2) is dissolved in a little quantity of HCI and MgCl_(2)6H_(2)O is crystallised from solution. The hydrated MgCl_(2) is heated in a current of dry HCl gas to get anhydrous MgCl_(2) Pused anhydrous MgCl_(2) is subjected to electrolysis. Magnesium deposited at cathode. Which of the following process is used in the extractive metallurgy of magnesium

Sea water contains Magnesium in the form of

What happens when Mg(OH)_2 is dissolved in water?

Sea Water contains magnesium in the form of

MgCl_(2).6H_(2)O cannot be dehydrated on strong heating .Why?

On heating MgCl_(2). 2H_(2)O at 350^(@)C in the presence of anhydrous MgC_(2) , is formed

Discuss different stages of extraction of magnesium metal from sea water .

The electronic configuration of Magnesium (Mg) is

(A): Magnesium metal can easily be extracted from sea water rather than sodium metal, (R): Mg(OH)_(2) is less soluble in water than NaOH.