Bottles containing `C_(6)H_(5)I` and `C_(6)H_(5)-CH_(2)I` lost their original lables. They were labelled A and B for festing. A and B were separately taken in a test tube and boiled with `NaOH` solution. The end solution in each tube was made acidic with dilute `HNO_(3)` and then some `AgNO_(3)` solution was added. Substance B gave a yellow precipitate. Which one of the following statements is true for this experiment.

Options

A. Additionn of `HNO_(3)` was unnecessary
B. A was `C_(6)H_(5)CH_(2)I`
C. A was `C_(6)H_(5)CH_(2)I`
D. B was `C_(6)H_(5)I`

Answer

d

Explanation

Tube A.
`C_(6)H_(5)I underset("Boil")overset(NaOH)to"No reaction" underset((ii)AgNO_(3))overset((i)"Dil. "HNO_(3))to "No yellow ppt. of AgI"`
Tube B.
`C_(6)H_(5)CH_(2)I underset(-C_(6)H_(5)CH_(2)OH)overset(NaOH,boil)to NaI underset((ii)AgNO_(3))overset((i)Dil.HNO_(3))to" AgI yellow ppt."`
Thus, statement (b), i.e., A was `C_(6)H_(5)I` is correct.