1.

Which of the following statement is correct [NCERT 1978]

A.                 \[\Delta H\] is positive for exothermic reaction
B.                 \[\Delta H\] is negative for endothermic reaction
C.                 The heat of neutralization of strong acid and strong base is always the same
D.                 The enthalpy of fusion is negative
Answer» D.                 The enthalpy of fusion is negative


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