A) 0.1 M sugar solution
B) 0.1 M KC1 solution
C) \[0.1\text{ }MCu{{(N{{O}_{3}})}_{2}}\] solution
D) \[~0.1\text{ }M\text{ }AgN{{O}_{3}}\] solution
Correct Answer: C
Solution :
Vapour pressure of a solvent is lowered by the presence of solute in it. Lowering in vapour pressure is a colligative property i.e., it depends on the number of particles present in the solution. \[Cu{{(N{{O}_{3}})}_{2}}\] give the maximum number of ions (i.e., 3) so it causes the greatest lowering in vapour pressure of water.You need to login to perform this action.
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