Extraction of Mg

Question 1

concentration method (Mg)

Answer 1

Dow’s Natural Brime Process

Question 2

MgO + CaO + CO2 + dil. HCl = (Mg)

Answer 2

MgCl2 + CaCl2 + H2

Question 3

dow’s natural brime process (Mg)

Answer 3

1. heat
2. dil. HCl
3. CO2
4. MgCl2 is obtained

Question 4

dow’s sea water process (Mg)

Answer 4

1. Ca(OH)2
2. Mg(OH)2 is filtered out
3. HCl
4. MgCl2.2H2O
5. MgCl2

Question 5

to extract MgCl2 from sea water, __ process is used (Mg)

Answer 5

Dow’s Sea Water Process

Question 6

to extract MgCl2 from dolomite, ___ process is used (Mg)

Answer 6

Dow’s Natural Brime Process

Question 7

Reduction method (Mg)

Answer 7

Electrometallurgy

Question 8

cathode in electrometallurgy is made up of (Mg)

Answer 8

Fe

Question 9

anode in electrometallurgy is made up of (Mg)

Answer 9

graphite

Question 10

electrolyte in electrometallurgy is (Mg)

Answer 10

MgCl2 + NaCl + NaF

Question 11

NaCl and NaF is added to in electrometallurgy (Mg)

Answer 11

to reduce the MP

improves electrical conductivity

Question 12

why inert gases is continiously passed in electrometallurgical cell (Mg)

Answer 12

to avoid contact of Mg with air

Question 13

refining method (Mg)

Answer 13

electrolytic refining

Question 14

Mg + N2 = (Mg)

Answer 14

Mg3N2

Question 15

Mg + O2 = (Mg)

Answer 15

MgO