Q1: Liquid ammonia and 60% nitric acid reaction (which produces ammonium nitrate) is

ANS:A - exothermic

The reaction between liquid ammonia (NH3) and 60% nitric acid (HNO3) to produce ammonium nitrate (NH4NO3) is exothermic. The balanced chemical equation for the reaction is: 𝑁𝐻3(𝑎𝑞)+𝐻𝑁𝑂3(𝑎𝑞)→𝑁𝐻4𝑁𝑂3(𝑎𝑞)NH3​(aq)+HNO3​(aq)→NH4​NO3​(aq) In this reaction, the bonds formed in the products (ammonium nitrate) are stronger than the bonds broken in the reactants (liquid ammonia and nitric acid). As a result, energy is released in the form of heat, making the reaction exothermic. Exothermic reactions release energy to the surroundings, usually in the form of heat, and often result in an increase in temperature of the surroundings. In the case of the reaction between liquid ammonia and nitric acid to produce ammonium nitrate, the reaction mixture would become warmer as heat is released during the reaction. Therefore, the reaction between liquid ammonia and 60% nitric acid to produce ammonium nitrate is exothermic.