Which one of the following reactions are endothermic? Options: A . &nbspFe(s)→Fe(l) B . &nbsp2C+2H2+20kcal/mol → C2H C . &nbspBa(OH)2+CO2 → BaCO3+H2O+heat D . &nbspBoth A & B

Which one of the following reactions are endothermic?

Question

Which one of the following reactions are endothermic?

Options:

A . Fe(s)→Fe(l)

B . 2C+2H2+20kcal/mol → C2H

C . Ba(OH)2+CO2 → BaCO3+H2O+heat

D . Both A & B

Answer: Option D

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