Solutions Question 40
Question: For 0.1 M solution, the colligative property will follow the order [AMU 2000]
Options:
A) $ NaCl>Na_2SO_4>Na_3PO_4 $
B) $ NaCl<Na_2SO_4<Na_3PO_4 $
C) $ NaCl>Na_2SO_4\approx Na_3PO_4 $
D) $ NaCl<Na_2SO_4=Na_3PO_4 $
Show Answer
Answer:
Correct Answer: B
Solution:
Colligative property in decreasing order $ Na_3PO_4>Na_2SO_4>NaCl $
$ Na_3PO_4\to 3N{a^{+}}+PO_4^{3-}=4 $
$ Na_2SO_4\to 2N{a^{+}}+SO_4^{2-}=3 $
$ NaCl\to N{a^{+}}+C{l^{-}}=2 $
