Question
Name the major salt present in sea-water.
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$\text{NaCl}+\text{Na}_3+\text{H}_2\text{O}+\text{CO}_2\rightarrow$
$\text{CuSO}_4\ +\ \text{NaOH}\xrightarrow{\ \ \ \ \ \ \ \ \ \ \ \ }\text{Cu(OH)}_2\ +\ \text{Na}_2\text{SO}_4$