JEE · NEET Previous Year Question

For electron gain enthalpies of the elements denoted as H, the incorrect option is :

Topic: JEE PYQ

Answer: B. Full step-by-step solution below.

  1. AH (Cl) < H (F)
  2. BH (Se) < H (S)
  3. CH (I) < H (At)
  4. DH (Te) < H (Po)

Correct answer: B

Solution

(b)
(a) H(Cl)< H(F)
(-345) (-328) Correct
(b) H (Se) < H(S)
(-195) (-200) Incorrect
(c) H (I) < H (At)
(-295) (-270) Correct
(d) H (Te) < H (Po)
(-190) (-183) Correct

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