General Knowledge - Chemistry - Discussion

Discussion Forum : Chemistry - Section 1 (Q.No. 75)
75.
The metal that is usually extracted from sea water is
Ca
Na
K
Mg
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
16 comments Page 1 of 2.

KRANTHI said:   7 years ago
Each cubic kilometre of seawater contains more than a million tons of magnesium compounds. In the US, 63% of magnesium production came from seawater and brines during 2015.

The metal is extracted from seawater and brines by means of electrolysis, a process that requires the passing of a current through a molten salt.
(1)

Bharat said:   9 years ago
Because NaCl (salt) is extracted not Na.

So, Mg is the correct answer.

Athiraja said:   1 decade ago
Na - 10,800 (Concentration in seawater (ppm)), Mg - 1,290, Ca - 411.

Abubakar said:   9 years ago
Na is the correct answer as sea water contain concentration of NaCl.

Vikas said:   1 decade ago
Most is O2 85%, here Na is the right answer 1.08% and 0.12%.

Santosh kumar said:   1 decade ago
As it is the 7th most important element on the earth.

Amartya Srivastava said:   7 years ago
What is the process of separating of it known as?

Debi said:   9 years ago
Mg is the right answer because NaCl extracted.

Zafar ali said:   1 decade ago
Mg can be with chloride and as carbonate.

KKavithaMuniyasamy said:   1 decade ago
Magnesium is the correct answer.


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