Which of the following reactions are exothermic?
1) C + O2 → CO22) 2Mg + O2 → 2MgO3) CuSO4 + 5H2O → CuSO4.5H2O4) All the above
A) 1
B) 2
C) 3
D) 4
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Which of the following reactions are exothermic?
1) C + O2 → CO22) 2Mg + O2 → 2MgO3) CuSO4 + 5H2O → CuSO4.5H2O4) All the above
A) 1
B) 2
C) 3
D) 4
=> Option D
1) C + O2 → CO22) 2Mg + O2 → 2MgO3) CuSO4 + 5H2O → CuSO4.5H2O4) All the above
A) 1
B) 2
C) 3
D) 4
=> Option D
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