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Saturday, 31 October

JEE Main 2022 · ChemistryMultiple choiceMatch the listMediumRecall

JEE Main 27 July 2022, Shift 1, Chemistry Q73

Question 73 of 90 in this shift, Chemistry question 13 of 30, Section A.

Match List I with List II. List I (Pollutant) | List II (Disease/sickness) A. Sulphate (>500 ppm) | I. Methemoglobinemia B. Nitrate (>50 ppm) | II. Brown mottling of teeth C. Lead (>50 ppb) | III. Laxative effect D. Fluoride (> 2ppm) | IV. Kidney damage Choose the correct answer from the options given below:
  1. (1)A-IV, B-I, C-II, D-III
  2. (2)A-III, B-I, C-IV, D-IIOfficial answer
  3. (3)A-II, B-IV, C-I, D-III
  4. (4)A-II, B-IV, C-III, D-I

Official answer

Option 2

NTA final key.

Chapter
Environmental Chemistry
Topic
Environmental Chemistry
Idea tested
Fluoride Limits in Drinking Water

Same idea in other shifts

Asked 3× in all
  1. 3 Aug 2021, Shift 2 · Q41Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A : Fluoride ion…EasyAssertion–reason
  2. 2 Apr 2017 (offline) · Q44A water sample has ppm level concentration of following anions F−=10\mathrm{F^-}=10 ; SO42−=100\mathrm{SO_4^{2-}}=100 ; NO3−=50\mathrm{NO_3^-}=50 The…EasySingle correct

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. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.