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Question

What is the most abundant element in sea water?
  1. Sodium
  2. Potassium
  3. Chlorine
  4. Iodine

A
Sodium
B
Potassium
C
Iodine
D
Chlorine
Solution
Verified by Toppr

  • Salinity in seawater is mainly due to presence of sodium chloride. Abundant element in the seawater is chloride and constitutes 1.94% of all the constituents.
  • Chloride is followed by sodium which constitutes 1.08%, potassium 0.04% and minute quantities of iodine.

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