What does phenol give with dilute $HNO_3$?

Reaction of phenol with $NaOH$ followed by heating with $CO_{2}$ under high pressure,and subsequent acidification gives compound $X$ as the major product,which can be purified by steam distillation. When reacted with acetic anhydride in the presence of a trace amount of conc. $H_{2}SO_{4}$,compound $X$ produces $Y$ as the major product. Compound $Y$ is $....$

Which one of the following statements is not correct?

What will be the product of the reaction shown below?

Which of the following compounds reacts with ethylmagnesium bromide and also decolourizes bromine water solution?

Which of the following is $NOT$ a dihydric alcohol (or dihydric phenol)?