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JEE Main 2026 · 6 Apr · Shift 1, Chemistry question 61

Match the LIST-I with LIST-II

Choose the correct answer from the options given below:

List-I: Electronic configuration of tetrahedral metal ion

  • A
    d2d^2
  • B
    d4d^4
  • C
    d6d^6
  • D
    d8d^8

List-II: Crystal Field Stabilization Energy ($\Delta_t$)

  • I
    −0.6
  • II
    −0.8
  • III
    −1.2
  • IV
    −0.4
Choose one option
Answer and worked solution

Official answer: C

Tetrahedral CFSE. Each e electron contributes −0.6Δt-0.6\Delta_t and each t2t_2 electron +0.4Δt+0.4\Delta_t.

  • d2d^2 (e2e^2): −1.2-1.2 (III).
  • d4d^4 (e2t22e^2t_2^2): −0.4-0.4 (IV).
  • d6d^6 (e3t23e^3t_2^3): −0.6-0.6 (I).
  • d8d^8 (e4t24e^4t_2^4): −0.8-0.8 (II).

Match: A-III, B-IV, C-I, D-II.

(C)

Topics:Crystal field theory
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