Benzyl chloride, though a primary halide, readily forms a precipitate when trested wirh 2% ethanolic silvee nitraye. explain

Answer is: chlorine anion (Cl⁻) from benzyl chloride (C₇H₇Cl or C₆H₅CH₂Cl) form precipitate (low solubility salt AgCl) with silver cations (Ag⁺) from 2% ethanolic silver nitrate (AgNO₃).
Balanced chemical reaction of precipation: Cl⁻ + Ag⁺ → AgCl(s).
Benzyl chloride is very reactive colourless liquid.

Rn in the right answer

Answerδh > 0explanationc₆h₆  (s)  → c₆h₆ (l)if you are changing it from a solid to a liquid, you are pretty much melting the solid. this requires heat energy. therefore, the reaction is endothermic (takes in energy); the system enthalpy increases as the reaction proceeds: δh > 0.