AIIMS 2015 Biology Question Paper for free online practice with solutions

Assertion (A) : Chlorine is absorbed as Cl- ions. Its precise role is not well known. However with Na+ and K+, it help in determining solute concentration and anion-cation balance is cells.
Reason (R) : Chlorine plays an important role in photosynthesis and takes part in the water splitting reaction, thus releasing O2.