Question

Read the following statements and find out the incorrect statement(s).

• A. All the elements present in sample of earth’s crust are also present in a sample of living tissue.
• B. Relative abundance of carbon and hydrogen with respect to other elements is higher in earth’s crust than in any living organisms.
• C. During chemical analysis trichloroacetic acid $\left(C{l}_{3}CCOOH\right)$ is used.
• D. All of the above.

Answer 1

Answer: (B)

• All the elements present in sample of earth’s crust are also present in a sample of living tissue.
• Relative abundance of carbon and hydrogen with respect to other elements is higher in any living organisms than in earth’s crust.
• During chemical analysis trichloroacetic acid $\left(C{l}_{3}CCOOH\right)$ is used.