The amount of heat evolved when 1 g equivalent of the acid is completely neutralised by a strong base in a dilute solution is called
Heat of neutralization of base
Heat of neutralization of acid
Heat of solution
Heat of dilution
As we have learned,
Heat of Neutralization
It is an enthalpy change during the neutralization of 1 gm mole of an acid and base. It is also heat of the formation of water.
According to a definition, the quantity produced when a gram equivalent of an acid is neutralized with a base in a dilute solution. It is called as the heat of neutralization of acid
Hence, option number (2) is correct.