Subject Category > General Knowledge

Q. Which of the following reactions are exothermic? 1)   C + O2  → CO22)  2Mg + O2  → 2MgO3)  CuSO4 + 5H2O  → CuSO4.5H2O4)  All the above

A) 2

B) 1

C) 4

D) 3

✔ 4

Additional Information > Exam point of View

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