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Coffee, spinach, onion and tea in our diet mostly provide us with which of the following elements as food?
1. Fluoride
2. Chloride
3. Iodine
4. Sodium

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Correct Answer - Option 1 : Fluoride

The correct answer is Fluoride.

  • Coffee, spinach, onion, and tea in our diet mostly provide us with fluoride as food.
  • Fluoride is an inorganic, monatomic anion with the chemical formula F.
  • Fluoride is classified as a weak base since it only partially associates in solution, but concentrated fluoride is corrosive and can attack the skin.
  • Fluoride is the simplest Fluorine anion.

  • Iodine is a chemical element with the symbol 'I' and atomic number 53.
  • Discovered by the French chemist Bernard Courtois in 1811.
  • The heaviest of the stable halogens.
  • It sublimes easily with gentle heat.
  • Fish (such as cod and tuna), seaweed, shrimp, and other seafood, which are generally rich in iodine.
  • Chloride(Cl-) is formed when the element chlorine gains an electron.
  • It is an essential electrolyte located in all body fluids responsible for maintaining acid/base balance, transmitting nerve impulses, and regulating fluid in and out of cells.
  • Foods with higher amounts of chloride include seaweed, rye, tomatoes, lettuce, celery, and olives.
  • Sodium is a chemical element with the symbol 'Na' and atomic number 11.
  • Sodium was first isolated by Humphry Davy in 1807 by the electrolysis of sodium hydroxide.
  • It is kept in kerosene to prevent it from coming in contact with oxygen and moisture.

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