If there is a compound with the formula $CH_3C(OH)_3$,which one of the following compounds would be obtained from it without reaction with any reagent?

In the reaction $HCOOH \xrightarrow{H_2SO_4} CO + H_2O$,$H_2SO_4$ acts as:

Which of the following substances produces ethane upon heating with soda lime?

The correct order of acid strengths of benzoic acid $(X)$, peroxybenzoic acid $(Y)$ and $p-$nitrobenzoic acid $(Z)$ is

The product of the reaction is:

Give the reactions of benzoic acid $(C_6H_5COOH)$ with the following:
$(i)$ Sodium metal
$(ii)$ Solution of sodium hydroxide $(NaOH)$
$(iii)$ Solution of sodium bicarbonate $(NaHCO_3)$
$(iv)$ $P_2O_5$ or conc. $H_2SO_4$ $+$ heat
$(v)$ $PCl_5$
$(vi)$ $PCl_3$
$(vii)$ $SOCl_2$
$(viii)$ $NH_3$ $+$ high temperature
$(ix)$ $LiAlH_4$ / ether or $B_2H_6$
$(x)$ Sodalime $(NaOH + CaO)$ $+$ heat
$(xi)$ Conc. $HNO_3$ $+$ conc. $H_2SO_4$ $+$ heat
$(xii)$ $Br_2 + FeBr_3$
$(xiii)$ Oleum $(H_2SO_4 + SO_3)$ $+$ heat