Assertion : The micelle formed by sodium stea | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The assertion is correct because in a micelle,the hydrophilic $-COO^{-}$ heads are oriented towards the water at the surface,while the hydrophobic

Vedclass · Accepted Answer

If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.

Vedclass · Answer

(B) The assertion is correct because in a micelle,the hydrophilic $-COO^{-}$ heads are oriented towards the water at the surface,while the hydrophobic hydrocarbon tails point inward.The reason is also correct because the addition of soap (sodium stearate) acts as a surfactant,which lowers the surface tension of water.However,the reduction of surface tension is a property of surfactants,not the direct explanation for why the $-COO^{-}$ groups are at the surface of the micelle. The orientation is due to the amphiphilic nature of the molecules.

Assertion : The micelle formed by sodium stearate in water has $-COO^{-}$ groups at the surface.
Reason : Surface tension of water is reduced by the addition of stearate.

Similar Questions

Arsenic sulfide is a negatively charged sol. Which of the following reagents has the lowest coagulating power for it?

Movement of colloidal particles under the influence of an electrostatic field is called:

Which one is an example of a gel?

Explain the cleansing action of soaps.

Colloidal particles cannot be classified on the basis of which of the following?

Vedclass Test Series

Exam Paper Generator

Online Exam Module

Assertion : The micelle formed by sodium stearate in water has $-COO^{-}$ groups at the surface.Reason : Surface tension of water is reduced by the addition of stearate.