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Saturday, 31 October

JEE Main 2021 · ChemistryMultiple choiceDiagram basedMediumData or graph

JEE Main 31 August 2021, Shift 1, Chemistry Q34

Question 34 of 90 in this shift, Chemistry question 4 of 30, Section A.

Select the graph that correctly describes the adsorption isotherms at two temperatures T1\mathrm{T_1} and T2\mathrm{T_2} (T1>T2\mathrm{T_1} > \mathrm{T_2}) for a gas : (x−x- mass of the gas adsorbed m−\mathrm{m}-mass of adsorbent P−\mathrm{P}-pressure)

The figure, in words

Four graphs, vertical axis x/m with arrow, horizontal axis P with arrow; each shows two lines/curves labelled T1 and T2.
  1. (1)[figure: graph of xm\frac{x}{m} vs P; two curves from the origin that rise and flatten; curve labelled T2 above curve labelled T1]Official answer
  2. (2)[figure: graph of xm\frac{x}{m} vs P; two curves from the origin that rise and flatten; curve labelled T1 above curve labelled T2]
  3. (3)[figure: graph of xm\frac{x}{m} vs P; two straight lines from the origin; line labelled T2 steeper (above), line labelled T1 less steep]
  4. (4)[figure: graph of xm\frac{x}{m} vs P; two straight lines from the origin; line labelled T1 steeper (above), line labelled T2 less steep]

Official answer

Option 1

NTA final key.