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JEE Main 2022 · ChemistryNumerical answerNumerical valueMediumData or graph

JEE Main 27 June 2022, Shift 2, Chemistry Q89

Question 89 of 90 in this shift, Chemistry question 29 of 30, Section B.

[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 line rising to the right, partly dashed towards the vertical axis, with a small right triangle marked 'slope = 1'; the vertical axis is cut at a marked 'Intercept = 0.602'] If the initial pressure of a gas is 0.03 atm, the mass of the gas adsorbed per gram of the adsorbent is __________ ×10−2\times 10^{-2} g.

The figure, in words

Adsorption isotherm: log(x/m) on the vertical axis vs log p on the horizontal axis; straight line labelled slope = 1; intercept labelled 0.602.

Official answer

12

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. 28 Jul 2022, Shift 2 · Q59Among the following the number of curves not in accordance with Freundlich adsorption isotherm is ________. (a) plot of log(x/m) (y-axis)…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.