Rank the following compounds in order of increasing basic strength. (weakest $\to$ strongest)

Which of the following statements is not true?

Which of the following sets of reagents, used in the order shown, would enable the preparation of $p$-chlorophenol from $p$-chloronitrobenzene?

$A$ nitrogen-containing organic compound gave an oily liquid on heating with bromine and potassium hydroxide solution. On shaking the product with acetic anhydride,an antipyretic drug was obtained. The reactions indicate that the starting compound is

Given below are some nitrogen-containing compounds. Each of them is treated with $HCl$ separately. $1.0 \ g$ of the most basic compound will consume $........$ $mg$ of $HCl$. ($Given$ molar mass in $g \ mol^{-1}$: $C:12, H:1, O:16, Cl:35.5$)

An alkyl halide reacts with alcoholic ammonia in a sealed tube,the product formed will be