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I need to know No 16-20 except 17

16. According to the Fajans-Paneth rule, determine which ion will be adsorbed by the surface of the ZnS precipitate formed by the effect of excess ZnCl2 on the Na2S solution? A. Na+ B. Zn2+ C. H+ D. S2 E. Cl 17. One of the important indicators of blood is the rate of erythrocyte deposition. What is the phenomenon caused by: A. Sedimentation B. Diffraction C. Peptization D. Diffusion E. Condensation 18. Which of the ions will have the largest coagulating effect on sol with a positively charged granule? A. OH B. SO42 C. Mg2+ D. Al3+ E. NO3= 19. pI insulin is 6.0. How will insulin behave during electrophoresis in a 0.1M hydrochloric acid solution? A to settle B move to the anode Cremain stationary D move to cathode E to evaporate 20. When adding to 0.1% solution of albumin, electrolyte salts, the following is observed A. The process of swelling B. Isolation of protein from solution as a result of denaturation C. Isolation of protein from solution without denaturation D. The gelation process E. Protein movement in an electric field