Arrange the following elements in descending order of their contribution to percentage weight of the human body. (a) Oxygen (b) Carbon (c) Hydrogen (d) Nitrogen Choose the correct answer from the options given below:

A (a), (b), (c), (d)

B (c), (a), (b), (d)

C (b), (c), (d), (a)

D (b), (a), (c), (d)

The answer is A.

Solution

Reference: NCERT Class XI, page 105.

Concept Elemental composition of living tissue

107 questions from this chapter have appeared across 26 exam years.