Question

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

Answer 1

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.

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Iodine	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	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	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.