Question

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> ___ and ___ ions are the most commonly found in the ocean water.

• A. Calcium, Sodium
  
• B. Sodium, Chloride

Answer 1

The correct option is B Sodium, Chloride

<!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}--> Share of different salts is as shown below—
Sodium chloride — 77.7%,
Magnesium chloride—10.9%,
Magnesium sulphate —.4.7%,
Calcium sulphate — 3.6%,
Potassium sulphate — 2.5%. <!--td {border: 1px solid #ccc;}br {mso-data-placement:same-cell;}-->