Home
Class 12
CHEMISTRY
Assertion : Lyophilic colloids are ca...

Assertion : Lyophilic colloids are called as reversible sols. Reason : Lyophilic sols are liquid loving. : If both (A) and (R) are correct, and (R) is the correct explanation of (A), If both (A) and (R) are correct, but (R) is not the correct explanation of (A), If (A) is correct, but (R) is incorrect, If (A) is incorrect, but (R) is correct

A

If both (A) and (R) are correct, and (R) is the correct explanation of (A)

B

If both (A) and (R) are correct, but (R) is not the correct explanation of (A)

C

If (A) is correct, but (R) is incorrect

D

If (A) is incorrect, but (R) is correct

Text Solution

Verified by Experts

The correct Answer is:
A

If the dispersion medium is separated from the dispersed phase, the lyophilic sol can be obtained b} simply remixing the disperse phase with the dispersion medium. That is why these sols are also called reversible sols.
Promotional Banner

Similar Questions

Explore conceptually related problems

Lyophilic colloịds are also called reversible sols. Why?

Assertion : The mass of nickel catalyst recovered after being used in the-hydrogenation of an oil is less than the mass of nickel added to the reaction.Reason : Catalyst take part in the reaction but are recovered in the end. : If both (A) and (R) are correct, and (R) is the correct explanation of (A); If both (A) and (R) are correct, but (R) is not the correct explanation of (A); If (A) is correct, but (R) is incorrect; If (A) is incorrect, but (R) is correct

Assertion : The free gaseous Cr atom has six unpaired electrons. Reason : Half-filled s-orbital has greater stability. : If both (A) and (R) are correct and (R) is the correct explanation of(A)., If both (A) and (R) are correçt, but (R) is not the correct explanation of (A)., If (A) is correct, but (R) is incorrect., If both (A) and (R) are incorrect.

Assertion : Sodium chloride is used to clear snow on the roads. Reason : Sodium chloride depresses the freezing point of water. a)If both (A) and (R) are correct and (R) is the correct explanation of(A). b)If both (A) and (R) are correct, but (R) is not the correct explanation of (A). c)If (A) is correct, but (R) is incorrect. d)If both (A) and (R) are incorrect.

Assertion : Iodine is more soluble in CCI_4 than in water. Reason : Non-polar solutes are more soluble in non-polar solvents. a)If both (A) and (R) are correct and (R) is the correct explanation of(A). b)If both (A) and (R) are correct, but (R) is not the correct explanation of (A). c)If (A) is correct, but (R) is incorrect. d)If both (A) and (R) are incorrect.

Assertion : Hydrogen has one electron in its orbit but it produces several spectral lines. Reason : There are many excited energy levels available. If both (A) and (R) are correct and (R) is the correct explanation of(A)., If both (A) and (R) are correçt, but (R) is not the correct explanation of (A)., If (A) is correct, but (R) is incorrect., If both (A) and (R) are incorrect.

Assertion : Limiting line in the Balmer series has a wavelength of 364.4 mm. Reason : Limiting line is obtained for a jump of electron from n= oo : If both (A) and (R) are correct and (R) is the correct explanation of(A)., If both (A) and (R) are correçt, but (R) is not the correct explanation of (A)., If (A) is correct, but (R) is incorrect., If both (A) and (R) are incorrect.

Assertion : The solubility of a gas in a liquid increases with increase of pressure. Reason : The solubility of a gas in a liquid is directly proportional to the pressure of the gas. a)If both (A) and (R) are correct and (R) is the correct explanation of(A). b)If both (A) and (R) are correct, but (R) is not the correct explanation of (A). c)If (A) is correct, but (R) is incorrect. d)If both (A) and (R) are incorrect.