Learn

Saturday, 31 October

JEE Main 2022 · ChemistryNumerical answerNumerical valueMediumData or graph

JEE Main 28 July 2022, Shift 2, Chemistry Q59

Question 59 of 90 in this shift, Chemistry question 29 of 30, Section B.

Among the following the number of curves not in accordance with Freundlich adsorption isotherm is ________. (a) plot of log(x/m) (y-axis) against log P (x-axis) (b) plot of log(x/m) (y-axis) against P (x-axis) (c) plot of log(x/m) (y-axis) against P (x-axis) (d) plot of log(x/m) (y-axis) against log P (x-axis)

The figure, in words

Four small graphs. (a) y = log(x/m), x = log P: concave-down curve rising from the origin. (b) y = log(x/m), x = P: straight line rising from the origin. (c) y = log(x/m), x = P: straight line rising with positive intercept on the y-axis. (d) y = log(x/m), x = log P: straight line rising with positive intercept on the y-axis.

Official answer

3

NTA final key.

Chapter
Surface Chemistry
Topic
Adsorption
Idea tested
Freundlich Logarithmic Plot

Same idea in other shifts

Asked 7× in all
  1. 8 Apr 2023, Shift 1 · Q63Which of the following represent the Freundlich adsorption isotherms? A. [graph: xm\frac{x}{m} vs pp] B. [graph: log⁡xm\log\frac{x}{m} vs…MediumDiagram basedHas a figure
  2. 27 Jun 2022, Shift 2 · Q89[figure: graph with vertical axis log⁡xm\log\frac{x}{m} (arrow pointing up) and horizontal axis log⁡p\log p (arrow pointing right); a straight…MediumNumerical valueHas a figure
  3. 3 Aug 2021, Shift 2 · Q58In an adsorption isotherm, it is seen that the graph of log⁡(xm)\log\left(\frac{x}{m}\right) vs log⁡P\log P, where PP is in atm, is a straight…MediumNumerical value
  4. 24 Feb 2021, Shift 1 · Q32In Freundlich adsorption isotherm, slope of AB line is :MediumDiagram basedHas a figure
  5. 2 Sep 2020, Shift 1 · Q48The mass of gas adsorbed, xx, per unit mass of adsorbate, mm, was measured at various pressures, pp. A graph between log⁡xm\log\frac{x}{m}…MediumNumerical value
  6. 6 Sep 2020, Shift 2 · Q49For Freundlich adsorption isotherm, a plot of log⁡(x/m)\log(x/m) (yy-axis) and log⁡p\log p (xx-axis) gives a straight line. The intercept and…MediumNumerical value

Question text from the official JEE Main paper published by NTA; answer from the final answer key. Chapter, topic and idea tags, difficulty and skill are Lumi’s. This question needs a figure we do not reproduce; it is described in words above. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.