Statement-1: Micelles are formed by surfactan | vedclass

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(B) $Statement-1$ is True: Micelles are indeed formed by surfactant molecules only above the critical micellar concentration $(CMC)$ and the Kraft tem

Vedclass · Accepted Answer

$Statement-1$ is True,$Statement-2$ is True; $Statement-2$ is $NOT$ a correct explanation for $Statement-1$.

Vedclass · Answer

(B) $Statement-1$ is True: Micelles are indeed formed by surfactant molecules only above the critical micellar concentration $(CMC)$ and the Kraft temperature $(T_k)$.$Statement-2$ is True: At the $CMC$,individual surfactant ions aggregate to form large,bulky micellar particles. These large particles have lower mobility compared to individual ions,which leads to a sharp decrease in the molar conductivity of the solution.Conclusion: While both statements are true,the decrease in conductivity is a consequence of micelle formation,not the reason why micelles form. Therefore,$Statement-2$ is not the correct explanation for $Statement-1$.

$Statement-1$: Micelles are formed by surfactant molecules above the critical micellar concentration $(CMC)$.
$Statement-2$: The conductivity of a solution having surfactant molecules decreases sharply at the $CMC$.

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$Statement-1$: Micelles are formed by surfactant molecules above the critical micellar concentration $(CMC)$.$Statement-2$: The conductivity of a solution having surfactant molecules decreases sharply at the $CMC$.