The freezing point of water is depressed by 0.37°C in a 0.01 molal NaCl solution. The freezing point of 0.02 molal solution of urea is depressed by
0.37°C
0.74°C
0.185°C
0°C
Blood cells will remain as such in:
hypertonic solution
hypotonic solution
isotonic solution
none of the above
C.
isotonic solution
Living cells such as blood cells shrinks in hypertonic solution (plasmolysis) while bursts in hypotonic solutions (endosmosis). There is no effect when living cells are kept in isotonic solution.
The mixture that forms maximum boiling azeotrope is:
Ethanol + Water
Acetone + Carbon disulphide
Heptane + Octane
Water + Nitric acid
For an ideal solution, the correct option is :
Δmix V ≠ 0 at constant T and P
Δmix H = 0 at constant T and P
Δmix G = 0 at constant T and P
Δmix S = 0 at constant T and P