125) The relationship between osmotic pressure at 273 K when 10 gm glucose (P1), 10 gm urea (P2) and 10 gm sucrose (P3) are dissolved in 250 mL of water:

126) Hydrochloric acid solution A and B have concentrations of 0.5N ans 0.1N respectively. The volumes of solutions A and B required to make 2 L of 0.2N HCl are:

127) 10.6 gm of a substance of molecular weight 106 was dissolved in 100 mL. 10 mL of this solution was pipetted out into a 1000 mL flask and made upto the mark with distilled water. The molarity of the resulting solution is:

128) NaClO solution reacts with H₂SO₃ as NaClO + H₂SO₃ → NaCl + H₂SO₄. A solution of NaClO used in this reaction contained 15 gm of NaClO per litre. The normality of the solution would be:

129) The vapour pressures of pure benzene and toluene are 160 and 60 torr respectively. The mole fraction of toluene in vapour pressure in contant with equimolar solution of benzene and toluene is: