JEE Main · Chemistry · Hydrocarbons
Friedel-Crafts Failure on Deactivated Rings
JEE Main asked Friedel-Crafts Failure on Deactivated Rings 2 times in 2 of the 108 shifts Lumi analysed, in 2020 and 2024. It belongs to Aromatic Hydrocarbons, in Hydrocarbons (Chemistry). The longest wait between two years asking it was 4 years.
Updated 2026-10-24
- Times asked
- 2
- in 2 shifts
- Years
- 2 of 8
- First asked
- 2020
- last in 2024
- Pattern
- Occasional
- across the analysed shifts
Questions on this idea a shift, by year
2017–2026. Asked in 2020 and 2024. Years differ in how many shifts Lumi analysed, so each year is scaled to one shift of 25 Chemistry questions.
Raw count: 2017: 0 in 1 shift · 2020: 1 in 12 shifts · 2021: 0 in 24 shifts · 2022: 0 in 24 shifts · 2023: 0 in 12 shifts · 2024: 1 in 18 shifts · 2025: 0 in 8 shifts · 2026: 0 in 9 shifts.
Shift by shift
Each square is one analysed shift, in date order. Open a filled one for that paper.
How JEE Main framed it
Diagram based is the usual form. Skill tested: application.
- Count compounds failing a reaction
- Identify substrate giving best friedel-crafts yield
Difficulty
1 of the 2 questions had a numerical answer.
Every question
All 2 questions
From the official JEE Main shift papers, newest first. Open one for the full question, the options and the official answer.
- 9 Apr 2024, Shift 2 · Q90Number of compounds from the following which undergo Friedel-Crafts reactions is:________ toluene, nitrobenzene, xylene,…MediumNumerical value
- 9 Jan 2020, Shift 1 · Q39Which of these will produce the highest yield in Friedel Crafts reaction ?MediumDiagram basedHas a figure
Shifts: 9 Jan 2020, Shift 1, 9 Apr 2024, Shift 2.
Same topic
Other ideas in Aromatic Hydrocarbons
Aromatic Hydrocarbons has 21 ideas JEE Main has asked; 14 of them came up in more than one question. The 12 most asked are below.
- Ortho-Para vs Meta Directing11× · 2026
- Huckel's Rule (4n+2)8× · 2026
- Friedel-Crafts Alkylation7× · 2026
- Side-chain Oxidation6× · 2026
- Ranking Activating Groups6× · 2024
- Gattermann-Koch Formylation5× · 2026
- SNAr and Meisenheimer Complex5× · 2024
- Friedel-Crafts Acylation and Acylium Ion4× · 2024
- Nitrating Mixture and Nitronium Ion Generation3× · 2025
- Synergic Directing Effects in Di-substituted Benzenes3× · 2025
- Annulene Planarity and Aromaticity3× · 2024
- Friedel-Crafts Failure with Aniline3× · 2024