Which among the following is the correct composition of Borax?

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NDA General Ability Test 21 April 2024 Official Paper
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  1. Sodium, Boron, Magnesium and Hydrogen
  2. Sodium, Boron, Oxygen and Hydrogen
  3. Potassium, Boron, Oxygen and Hydrogen
  4. Sodium, Boron, Nitrogen and Hydrogen

Answer (Detailed Solution Below)

Option 2 : Sodium, Boron, Oxygen and Hydrogen
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Detailed Solution

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The correct answer is Sodium, Boron, Oxygen and Hydrogen.

Key Points

  • Borax is a chemical compound with the formula Na₂B₄O₇·10H₂O.
  • It is also known as sodium borate, sodium tetraborate, or disodium tetraborate.
  • Borax is composed of the elements sodium (Na), boron (B), oxygen (O), and hydrogen (H).
  • It is a white, crystalline powder that is easily soluble in water.
  • Borax is commonly used in cleaning products, cosmetics, and as a flux in metallurgy.

 Additional Information

  • Sodium, Boron, Magnesium and Hydrogen
    • This option is incorrect because magnesium is not a component of borax.
    • Magnesium is a different element and is not involved in the chemical composition of borax.
  • Potassium, Boron, Oxygen and Hydrogen
    • This option is incorrect because it mentions potassium instead of sodium.
    • Potassium is not a part of the borax compound.
  • Sodium, Boron, Nitrogen and Hydrogen
    • This option is incorrect because it includes nitrogen, which is not present in borax.
    • Nitrogen is not a component of borax’s chemical formula.
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