Home PYQs UPPSC UPPSC MCQs Prelims 1995 (GS Paper I)

Question

Which one of the following minerals is necessary to control heart beat?

  1. Sodium
  2. Sulphur
  3. Potassium
  4. Iron

Answer:

Option C: Potassium

Detailed Solution:

The correct answer is “Potassium”.

Potassium is essential for regulating the heartbeat. It helps maintain the correct balance of fluids inside and outside of cells, which is crucial for the normal rhythm of the heart.