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

Chloroform, when kept open, is oxidised to :

• CO₂

• COCl₂

• CO₂, Cl₂

• None of these

Blood cells will remain as such in:

• hypertonic solution

• hypotonic solution

• isotonic solution

• none of the above

The mixture that forms maximum boiling azeotrope is:

• Ethanol + Water

• Acetone + Carbon disulphide

• Heptane + Octane

• Water + Nitric acid

605.

For an ideal solution, the correct option is :

• Δ_mix V ≠  0 at constant T and P

• Δ_mix H =  0 at constant T and P

• Δ_mix G =  0 at constant T and P

• Δ_mix S = 0 at constant T and P