Of the following order of reactivity of Cl with AgNO₃, which one is correct?
 

${\mathrm{CH}}_2={\mathrm{CHCH}}_2\mathrm{Cl}$ is an allylic chloride that reacts with ${\mathrm{AgNO}}_3$  in the cold to give a white precipitate of $\mathrm{AgCl}$. ${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{CH}}_2\mathrm{Cl}$ gives a precipitate on warming. 

${\mathrm{CH}}_3\mathrm{CH}=\mathrm{CHCl}$ is a vinylic chloride which is inert even when heated.

Hence, the correct answer is (1).