Question

9. Which of the following is an exothermic process?
(1) C(s)* 0,9) - CO2(g)
(2) NaOH + HCI- NaCl + H2O
(3) Both (1) & (2)
(4) H/9) — 249)
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Answer 1

hey mate your answer↓
only (1) is exothermic reaction

in the reaction of C and O2 heat is released hence its called exothermic reaction

in the second reaction heat is given to complete reaction hence its endothermic not exothermic

hope that it will help you ❤❤❤❤