question_answer 17)

Which of the following statements does not apply to reverse osmosis? (a)It is used for water purification (b) In this technique, pressure greater than osmotic pressure is applied to the system (c) It is a passive process                                               (d) It is an active process

Answer:

                (d) Reverse osmosis is not an active process. A process (in organisms) is consideredactive when its completion requires energy in from of ATR And as reverse osmosisdose not consume ATR it is a passive process, though external pressure is applied inorder to carry out osmosis in a reverse direction (lower to higher). Rest of the options are true for reverse osmosis.