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Q. During dehydration what is the substance that is usually lost by the body

  • (A) Sugar
  • (B) Calcium phosphate
  • (C) Potassium chloride
  • (D) Sodium chloride
  • Correct Answer - Option(D)
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  • Filed under category Biology
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Explanation by: Admin

During dehydration, the body loses water and essential electrolytes, primarily sodium chloride (NaCl). Sodium plays a crucial role in maintaining fluid balance, nerve function, and muscle contraction.

  • Sugar → ❌ Not primarily lost during dehydration.
  • Calcium phosphate → ❌ Important for bones, but not significantly lost in dehydration.
  • Potassium chloride → ❌ Potassium loss can occur, but sodium chloride is lost in larger amounts.

Thus, Sodium chloride is the correct answer.

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