Which of the following produces violet colour with $FeCl_3$ solution?

Product $(A)$ and $(B)$ respectively are :-

The major product of the following reaction sequence is:
Aniline $\xrightarrow[(i) NaNO_2, HCl, 273-278K]{(ii) H_2O, warm} \text{Product}$ $\xrightarrow[(iv) NaOH]{(iii) Br_2, (excess)} \text{Product}$ $\xrightarrow{(v) CH_3I} \text{Final Product}$

The carbon-oxygen bond in phenol is slightly stronger than that in methanol. Why?

Carbolic acid is

Which of the following compounds $(i)$ and $(ii)$ will not react with a mixture of $NaBr$ and $H_{2}SO_{4}$? Explain why?
$(i)$ $CH_{3}CH_{2}CH_{2}OH$
$(ii)$ Phenol (as shown in the image)