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Saturday, 31 October

JEE Main 2022 · ChemistryMultiple choiceMatch the listEasyRecall

JEE Main 27 June 2022, Shift 1, Chemistry Q80

Question 80 of 90 in this shift, Chemistry question 20 of 30, Section A.

Match List - I with List - II. List - I (A) [figure: a bracketed cation drawn with a central N bonded to three CH3\mathrm{CH_3} groups and to CH3(CH2)15\mathrm{CH_3(CH_2)_{15}}, positive charge outside the bracket] Br−\mathrm{Br^-} (B) CH3−(CH2)11\mathrm{CH_3-(CH_2)_{11}} [benzene ring drawn] SO3−Na+\mathrm{SO_3^-Na^+} (C) C17H35COO−Na++Na2CO3+\mathrm{C_{17}H_{35}COO^-Na^+ + Na_2CO_3 +} Rosinate (D) CH3(CH2)16COO(CH2CH2O)nCH2CH2OH\mathrm{CH_3(CH_2)_{16}COO(CH_2CH_2O)_nCH_2CH_2OH} List - II (I) Dishwashing powder (II) Toothpaste (III) Laundry soap (IV) Hair conditioner Choose the correct answer from the options given below :

The figure, in words

Items (A) and (B) are partly drawn structures: (A) a square-bracketed cation with N at the centre bonded to CH3 above, CH3 below, CH3 to the right and CH3(CH2)15 to the left, with + outside the bracket and Br- after it; (B) CH3-(CH2)11 joined to a benzene ring (circle inside hexagon) bearing SO3(-) Na(+) at the para position.
  1. (1)(A) - (III), (B) - (II), (C) - (IV), (D) - (I)
  2. (2)(A) - (IV), (B) - (II), (C) - (III), (D) - (I)Official answer
  3. (3)(A) - (IV), (B) - (III), (C) - (II), (D) - (I)
  4. (4)(A) - (III), (B) - (IV), (C) - (I), (D) - (II)

Official answer

Option 2

NTA final key.

Chapter
Chemistry in Everyday Life
Topic
Chemistry in Everyday Life
Idea tested
Cationic Detergents and Hair Conditioners

Same topic in other shifts

All Chemistry in Everyday Life questions
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  4. 25 Jul 2022, Shift 1 · Q79Drugs used to bind to receptors, inhibiting its natural function and blocking a message are called :EasySingle correct
  5. 25 Jul 2022, Shift 2 · Q79Some drugs bind to a site other than the active site of an enzyme. This site is known asEasySingle correct
  6. 26 Jul 2022, Shift 1 · Q78Stearic acid and polyethylene glycol react to form which one of the following soap/s detergents ?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. 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.