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Saturday, 31 October

JEE Main 2024 · ChemistryNumerical answerNumerical valueMediumMulti-step

JEE Main 5 April 2024, Shift 1, Chemistry Q89

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

Consider the given chemical reaction sequence : phenol →Conc. H2SO4\xrightarrow{\text{Conc. } \mathrm{H_2SO_4}} Product A →Conc. HNO3\xrightarrow{\text{Conc. } \mathrm{HNO_3}} Product B Total sum of oxygen atoms in Product A and Product B are ________.

The figure, in words

Phenol (benzene ring with OH) reacting with conc. H2SO4 to give Product A, then conc. HNO3 to give Product B.

Official answer

14

NTA final key.

Chapter
Alcohols, Phenols and Ethers
Topic
Alcohols and Phenols
Idea tested
Phenol Nitration Reagent Effects

Same idea in other shifts

Asked 4× in all
  1. 6 Apr 2024, Shift 1 · Q77Given below are two statements : Statement I : Picric acid is 2,4,6 - trinitrotoluene. Statement II : Phenol - 2,4 - disulphonic acid is…EasyTwo statements
  2. 25 Jun 2022, Shift 1 · Q71Phenol on reaction with dilute nitric acid, gives two products. Which method will be most efficient for large scale separation ?MediumSingle correct
  3. 26 Jun 2022, Shift 1 · Q89Compound 'P' on nitration with dil. HNO3\mathrm{HNO_3} yields two isomers (A) and (B). These isomers can be separated by steam distillation.…HardNumerical 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.