Chemistry - Halogen Derivative Question with Solution | TestHub

Bottles containing ${\mathrm{C}}_6{\mathrm{H}}_5\mathrm{I}$ and ${\mathrm{C}}_6{\mathrm{H}}_5{\mathrm{CH}}_2\mathrm{I}$ lost their original labels. They were labelled A and B for testing. A and B were separately taken in test tubes and boiled with NaOH solution. The end solution in each tube was made acidic with dilute ${\mathrm{HNO}}_3$ and then some ${\mathrm{AgNO}}_3$ solution was added. Substance B give a yellow precipitate. Which one of the following statements is true for this experiment?