The pressure required for the reverse osmosis is quite high. For this,which of the following membranes is used?

$A$ solution of a non-electrolyte substance containing $1.05 \ g$ per $100 \ mL$ was found to be isotonic with a $3\%$ glucose solution. The molecular mass of the substance is:

How can you remove the hard calcium carbonate layer of the egg without damaging its semipermeable membrane? Can this egg be inserted into a bottle with a narrow neck without distorting its shape? Explain the process involved.

What is osmotic pressure? Explain and derive its equation.

At the same temperature,which of the following pairs of solutions will be isotonic?

At $0^{\circ} C$, a urea solution has an osmotic pressure of $400 \ mm$. On dilution by $x$ times, its osmotic pressure decreases to $100 \ mm$ at $20^{\circ} C$. The dilution factor $x$ is approximately