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Q. Statement 1: The heat of neutralization of perchloric acid, $HClO _4$, with $NaOH$ is same as that of $HCl$ with $NaOH$
Statement 2: Both $HCl$ and $HClO _4$ are strong acids

Thermodynamics

Solution:

Heat of neutralization for strong acid and strong base is equal to $-57.3 \,kJ\, mol ^{-1}$. $HClO _4$ and $HCl$ both are strong acid