Q. Consider the following elements found in a typical 70 kg man and arrange them in correct increasing order.
1. Sodium
2. Potassium
3. Copper
4. Iron
Select the correct answer from the code given below :
a) 4, 3, 1, 2
b) 3, 4, 2, 1
c) 3, 4, 1, 2
d) 4, 3, 2, 1
Correct Answer: c) 3, 4, 1, 2
Question from UPPSC Prelims 2025
Explanation:
In a typical 70 kg adult male, approximate total body contents are: copper ≈ 0.08–0.12 g, iron ≈ 3–4 g, sodium ≈ 90–110 g, and potassium ≈ 120–160 g. Hence the correct increasing order is copper < iron < sodium < potassium, i.e., 3, 4, 1, 2
