All of the following chemical reactions are endothermic except

  • (A) H2O(s) H2O(I)
  • (B) 2H2O(g) 2H2(g) +O2(g)
  • (C) H2O(g) H2O(I)
  • (D) AI2O3(I) + 2Fe(I) 2AI(s) + Fe2O3(s);
Correct Answer: C

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