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Saturday, 31 October

JEE Main 2022 · ChemistryMultiple choiceOtherEasyConceptual

JEE Main 28 June 2022, Shift 2, Chemistry Q62

Question 62 of 90 in this shift, Chemistry question 2 of 30, Section A.

Consider the following statements : (A) The principal quantum number ‘n’ is a positive integer with values of ‘n’ =1,2,3,...=1, 2, 3, ... (B) The azimuthal quantum number ‘ll’ for a given ‘n’ (principal quantum number) can have values as ‘l=0,1,2,....l=0, 1, 2, .... n (C) Magnetic orbital quantum number ‘ml_l’ for a particular ‘ll’ (azimuthal quantum number) has (2l+1)(2l+1) values. (D) ±1/2\pm 1/2 are the two possible orientations of electron spin. (E) For l=5l=5, there will be a total of 9 orbital Which of the above statements are correct ?
  1. (1)(A), (B) and (C)
  2. (2)(A), (C), (D) and (E)
  3. (3)(A), (C) and (D)Official answer
  4. (4)(A), (B), (C) and (D)

Official answer

Option 3

NTA final key.

Chapter
Structure of Atom
Topic
Quantum Numbers
Idea tested
Validity of Quantum Number Sets

Same idea in other shifts

Asked 3× in all
  1. 25 Jul 2022, Shift 1 · Q62Which of the following sets of quantum numbers is not allowed ?EasySingle correct
  2. 27 Jun 2022, Shift 2 · Q82Consider the following set of quantum numbers. n l ml\mathrm{m_l} A. 3 3 −3-3 B. 3 2 −2-2 C. 2 1 +1+1 D. 2 2 +2+2 The number of correct…EasyNumerical 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. Lumi analyses 108 of the 174 JEE Main shifts held from 2017 to 2026.