Which of the following reaction is endothermic

Which of the following reaction is endothermic

Options

(a) N₂ + O₂ → 2NO
(b) H₂ + Cl₂ → 2HCl
(c) H₂SO₄ + 2NaOH → Na₂SO₄ + 2H₂O
(d) none of these

Correct Answer:

N₂ + O₂ → 2NO

Explanation:

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