AktiraAktira JEE
Subscribe
ChemistryJEE Main 21 Jan 2026, Shift 2·Q22·Numerical·Easy–moderate

Solutions · Osmotic pressure isotonic solutions

The osmotic pressure of a living cell is 12 atm at 300 K. The strength of sodium chloride solution that is isotonic with the living cell at this temperature is g L−1^{-1}. (Nearest integer)

Given : R=0.08R = 0.08 L atm K−1^{-1} mol−1^{-1}

Assume complete dissociation of NaCl

(Given : Molar mass of Na and Cl are 23 and 35.5 g mol−1^{-1} respectively.)

We corrected a printing error in the original paper

Source printed “The osmotic pressure of a living cell in 12 atm”.

Video solution coming soon

We're animating every PYQ step by step. Subscribe to get them first.

Subscribe

See the full 21 Jan 2026, Shift 2 paper