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Saturday, 31 October

JEE Main 2021 · ChemistryMultiple choiceMatch the listMediumApplication

JEE Main 26 February 2021, Shift 1, Chemistry Q33

Question 33 of 90 in this shift, Chemistry question 3 of 30, Section A.

Match List-I with List-II. List-I (Electronic configuration of elements) | List-II (ΔiH\Delta_i H in kJ mol−1^{-1}) (a) 1s2 2s21s^2\ 2s^2 | (i) 801 (b) 1s2 2s2 2p41s^2\ 2s^2\ 2p^4 | (ii) 899 (c) 1s2 2s2 2p31s^2\ 2s^2\ 2p^3 | (iii) 1314 (d) 1s2 2s2 2p11s^2\ 2s^2\ 2p^1 | (iv) 1402 Choose the most appropriate answer from the options given below :
  1. (1)(a) →\rightarrow (i), (b) →\rightarrow (iv), (c) →\rightarrow (iii), (d) →\rightarrow (ii)
  2. (2)(a) →\rightarrow (iv), (b) →\rightarrow (i), (c) →\rightarrow (ii), (d) →\rightarrow (iii)
  3. (3)(a) →\rightarrow (ii), (b) →\rightarrow (iii), (c) →\rightarrow (iv), (d) →\rightarrow (i)Official answer
  4. (4)(a) →\rightarrow (i), (b) →\rightarrow (iii), (c) →\rightarrow (iv), (d) →\rightarrow (ii)

Official answer

Option 3

NTA final key.