Which of the following is incorrect?
1. Sulphates and phosphates are seen in acid soluble pool
2. Sulphates and phosphates are seen in acid insoluble pool
3. All carbon compounds that we get from living tissue can be called as biomolecules
4. Elemental analysis gives elemental composition of the living tissues.
Refer NCERT, Heading 9.1, page-142, para 1