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Saturday, 31 October

JEE Main 2023 · ChemistryNumerical answerNumerical valueEasyData or graph

JEE Main 12 April 2023, Shift 1, Chemistry Q87

Question 87 of 90 in this shift, Chemistry question 27 of 30, Section B.

Three organic compounds A, B and C were allowed to run in thin layer chromatography using hexane and gave the following result (see figure). The RfR_f value of the most polar compound is _______ ×10−2\times 10^{-2}

The figure, in words

TLC plate: baseline at bottom, dashed solvent front at top; solvent front distance labelled 8 cm. Spot A at 6 cm, spot B at 4 cm, spot C at 2 cm from the baseline.

Official answer

25

NTA final key.

Chapter
Organic Chemistry: Some Basic Principles and Techniques
Topic
No close match in our taxonomy
Idea tested
No close match in our taxonomy

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.