Easy MCQ +4 / -1 PYQ · JEE Mains 2020

The process that is NOT endothermic in nature is :

  1. A Ar(g) + e<sup>-</sup> $\to$ Ar<sup>-</sup>(g)
  2. B H(g) + e<sup>-</sup> $\to$ H<sup>-</sup>(g) Correct answer
  3. C Na(g) $\to$ Na<sup>+</sup>(g) + e<sup>-</sup>
  4. D O<sup>-</sup>(g) + e<sup>-</sup> $\to$ O<sup>2-</sup>(g)

Solution

H(g) + e<sup>-</sup> $\to$ H<sup>-</sup>(g) is exothermic <br><br>rest of all endothermic process.

About this question

Subject: Chemistry · Chapter: Thermodynamics · Topic: Zeroth and First Law

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