Saved Bookmarks
| 1. |
Identify the correct statement:A. `0.1 M NaCl` and `0.1 M` glucose solution are isotonicB. `0.1 M NaCl` and `0.3 M` glucose solution are isotonicC. The boiling point of `0.1 m` aqueous urea solution is less the `0.1 m` aqueous KCl solutionD. The freezing point of `0.1 m` glucose solution is less than `0.1 m KCl` solution. |
|
Answer» Correct Answer - C `pi_(NaCl) = i xx CRT " " pi_(glr cos e) = 1 xx 0.1 xx RT` `= 2 xx 0.1RT " " = 0.1 RT` `= 0.2 RT " " pi_(NaCL) != pi_(glu cos e)` `DeltaT_(b(NaCl)) = 2 xx 0.1K_(f) " " DeltaT_(b(urea)) = 0.1 K_(f)` Hence `DeltaT_(b(urea)) lt Delta T_(b(NaCl))` `Delta T_(f(glucos e)) = 0.1 xx K_(f) " " Delta T_(f(KCl)) = 2 xx 0.1 xx K_(f)` `Delta T_(f) = 0.2 K_(f)` `T_(f(glucos e)) gt T_(f(KCl))` |
|