Quantrex Quantrex AcademyJEE · NEET · NDA PYQs with solutions Open app
JEE Main 20206 SeptemberMorning Shift
Exam
JEE Main
Year
2020
Date
6 September
Shift
Morning Shift
Subject
Chemistry
Chapter
Surface Chemistry

JEE Main 2020 · 6 September · Morning Shift · Chemistry · Surface Chemistry

Kraft temperature is the temperature:

Kraft temperature is the temperature:

Options

  1. Abelow which the aqueous solution of detergents starts freezing.
  2. Bbelow which the formation of micelles takes place.
  3. Cabove which the aqueous solution of detergents starts boiling.
  4. Dabove which the formation of micelles takes place.

Correct answer

D. above which the formation of micelles takes place.

Step-by-step solution

(i) Micelles formation take place only above a particular temperature called as kraft temperature (TK)( {T}_{K} ) (ii) Concentration above which micelle formation become appreciable is critical micells concentration
Practice Surface Chemistry on Quantrex Academy →

More from Surface Chemistry

At a given temperature, 0.45 g of acetic acid in 50 mL of water is shaken with 1.0 g of… JEE Advanced 2026Adsorption of phenol from its aqueous solution on to fly ash obeys Freundlich isotherm.… JEE Advanced 2025Consider the following statements related to colloids. (I) Lyophobic colloids are not… JEE Advanced 202320mL of 0 . 5MNaCl is required to coagulate 200mL of As _ 2 S _ 3 solution in 2 hours.… JEE Main 2023Given below are two statements, one is labelled as Assertion A and the other is labelled… JEE Main 2023What happens when a lyophilic sol is added to a lyophobic sol? JEE Main 2023Four gases, A, B, C and D have critical temperatures 5 . 3, 33 . 2, 126 . 0 and 154 . 3K… JEE Main 2023The number of correct statements about modern adsorption theory of heterogeneous… JEE Main 2023 Full Surface Chemistry list All JEE Main PYQs