Calculate osmotic pressure of 0.1 M aqueous solution of an electrolyte at 300 K if van't Hoff factor is 1.125. $\left[\mathrm{R}=0.0821 \mathrm{~atm} \mathrm{dm}^3 \mathrm{~K}^{-1} \mathrm{~mol}^{-1}\right]$

Which from following gases causes the depletion of ozone layer in upper atmosphere?

Which from following complexes contains anionic ligand?

Find principle of green chemistry to show protection of selective group is not advantageous.