Explain the following terms giving an example of each: (i) Antacids

Question

Write four distinguishing features operative between chemisorption and physisorption.

Answer 1

| Chemisorption | Physisorption |
| It arises due to chemical bond formation. | It arises because of van der waals’ forces. |
| It is irreversible in nature. | It is reversible. |
| It is highly specific in nature. | It is not specific in nature. |
| It results into unimolecular layers on adsorbent surface. | It results into multimolecular layers on adsorbent surface under high pressure. |