1
AIIMS 2018
MCQ (Single Correct Answer)
+1
-0.33

When an excess and a very dilute aqueous solution of KI is added to very dilute aqueous solution of silver nitrate. The colloidal particles of silver iodide which are associated with the Helmholtz double layer in the form of

A
$$\mathrm{Agl} / \mathrm{Ag}^{+}: \mathrm{I}^{-}$$
B
$$\mathrm{Agl} / \mathrm{K}^{+}: \mathrm{NO}_3^{-}$$
C
$$\mathrm{Agl} / \mathrm{NO}_3^{-}: \mathrm{Ag}^{+}$$
D
$$\mathrm{Agl} / \mathrm{I}^{-}: \mathrm{K}^{+}$$
2
AIIMS 2018
MCQ (Single Correct Answer)
+1
-0.33

Assertion (A) Micelles are formed by surfactant molecules above the critical micellar concentration (CMC).

Reason (R) The conductivity of a solution having surfactant molecules decreases sharply at the CMC.

A
Both (A) and (R) are true and (R) is the correct explanation of (A).
B
Both (A) and (R) are true, but (R) is not the correct explanation of (A).
C
(A) is true and (R) is false.
D
Both (A) and (R) are false.
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