Class 12 NEET Chemistry Solutions Questions

Weight of glucose =10g
Weight of urea =10g and weight of sucrose =10g.
The number of moles of glucose (n1)=

Weight

Molecular weight

=

10

180

=0.05
Similarly, number of moles of urea (n2)=

10

60

=0.16 and the number of moles of sucrose (n3)=

10

342

=0.03
The osmotic pressure is a colligative property and it depends upon the number of moles of solute.
since n2>n1>n3, therefore p2>p1>p3