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Bottles containing C6H5I and C6H5CH2I lo...

Bottles containing `C_6H_5I` and `C_6H_5CH_2I` lost their original labels. They were labelled as 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 `HNO_3` and some `AgNO_3` solution was added. Substance B gave a yellow precipitate. Which one of the following statements is true for this experiment ?

A

Addition of `HNO_3` was unnecessary

B

A was `C_6H_5I`

C

A was `C_6H_5CH_2I`

D

B was `C_6H_5I`

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