Question

10. Which of the following is an example of exothermic reaction?
(A) CaCO3(s)+ heat - CaO(s) + CaO(s)+CO2
(B) CaO(s) + H2O - Ca(OH)2 + heat
(C) 2KCIO3 - 2KCl + 302
(D) C(s) + O2(g) → CO2(g)​

Answer 1

Answer:

hii ☺

B option is the answer !!

hope that helps uh...☺