- Exam
- JEE Main
- Year
- 2022
- Date
- 27 July
- Shift
- Evening Shift
- Subject
- Chemistry
- Chapter
- Surface Chemistry
JEE Main 2022 · 27 July · Evening Shift · Chemistry · Surface Chemistry
Given below are two statements: one is labelled as Assertion A and...
Given below are two statements: one is labelled as Assertion and the other is labelled as Reason
Assertion : Dissolved substances can be removed from a colloidal solution by diffusion through a parchment paper.
Reason : Particles in a true solution cannot pass through parchment paper but the collodial particles can pass through the parchment paper.
In the light of the above statements, choose the correct answer from the options given below
Options
- ABoth and are correct and is the correct explanation of
- BBoth and are correct but is not the correct explanation of
- C is correct but is not correct
- D is not correct but is correct
Correct answer
C. is correct but is not correct
Step-by-step solution
Colloidal solution particles can be separated using parchment paper. Since Particles (ions or smaller molecules) in a true solution can pass through animal membrane (bladder) or parchment paper or cellophane sheet but not the colloidal particles, the membrane can be used for dialysis.A bag of suitable membrane containing the colloidal solution is suspended in a vessel through which fresh water is continuously flowing (Fig. 5.9). The molecules and ions diffuse through membrane into the outer water and pure colloidal solution is left behind.
Hence, assertion is correct but reason is incorrect