which of the following is/are the advantages of the cellulosic membrane? Mechanically tough Higher flux Both (a) and (b) None of these

To determine the advantages of cellulosic membranes, let us analyze the options provided:

1. Mechanically Tough: Cellulosic membranes are known for their mechanical strength and durability, which is an important property in various applications, particularly in filtration and separation processes.

2. Higher Flux: These membranes can offer relatively higher flux rates compared to some synthetic membranes. This means they can allow higher volumes of liquid to pass through, making them efficient for certain processes.

3. Both (a) and (b): If both mechanical toughness and higher flux are indeed characteristics of cellulosic membranes, then this option could be correct.

4. None of these: This option suggests that none of the listed advantages apply, which seems unlikely given the known properties of cellulosic membranes.

Conclusion:

Based on the properties of cellulosic membranes, the correct answer is:

Final Answer: Both (a) and (b) are advantages of the cellulosic membrane.