A) Decinormal aluminium sulphate
B) Decinormal barium chloride
C) Decinormal sodium chloride
D) A solution obtained by mixing equal volumes of and and filtering
Correct Answer: A
Solution :
Osmotic pressure is a colligative property, ie, depends upon the number of particles of solute. Thus, the solution in which solute gives maximum number of ions, exerts maximum osmotic pressure. Number of particles, [a] In decinormal aluminium sulphate, \[A{{l}_{2}}{{(S{{O}_{4}})}_{3}}\xrightarrow[{}]{{}}\underbrace{2A{{l}^{3+}}+3SO_{4}^{2-}}_{5\text{ }particles}\] [b] In decinormar^barium chloride, \[BaC{{l}_{2}}\xrightarrow[{}]{{}}\underbrace{B{{a}^{2+}}+2C{{l}^{-}}}_{3\text{ }particles}\] [c] In decinormal sodium chloride, \[NaCl\xrightarrow[{}]{{}}\underbrace{N{{a}^{+}}+C{{l}^{-}}}_{2\text{ }particles}\] [d] When equal volumes of [b] and [c] are mixed, the concentration becomes half of present concentration. Thus, decinormal aluminium sulphate exerts maximum osmotic pressure.
You need to login to perform this action.
You will be redirected in
3 sec
