Question

In reverse osmosis, the membrane pores are smaller in size about ___________

(a) 0.04 to 600nm

(b) 0.08 to 500nm

(c) 0.1 to 600nm

(d) 0.2 to 500nm

This question was posed to me in an interview for job.

I'm obligated to ask this question of Reverse Osmosis, Ultrafilteration, COD and BOD in division Water of Applied Chemistry

Answer 1

Right option is (a) 0.04 to 600nm

For explanation: In reverse osmosis, the size of the membrane used is very smaller. It is about 0.04 to 600nm.