An organic compound with the molecular formula $C_9H_{10}O$ forms a $2,4-DNP$ derivative,reduces Tollens' reagent,and undergoes the Cannizzaro reaction. On vigorous oxidation,it gives $1,2-benzenedicarboxylic$ acid. Identify the compound.

Match the reactions given in column-$I$ with the suitable reagents given in column-$II$.

Column-$I$ (Reactions)	Column-$II$ (Reagents)
$(i)$. Benzophenone $\rightarrow$ Diphenylmethane	$(a)$. $LiAlH_4$
$(ii)$. Benzaldehyde $\rightarrow$ $1-$Phenylethanol	$(b)$. $DIBAL-H$
$(iii)$. Cyclohexanone $\rightarrow$ Cyclohexanol	$(c)$. $Zn(Hg) / \text{Conc. } HCl$
$(iv)$. Phenyl benzoate $\rightarrow$ Benzaldehyde	$(d)$. $CH_3MgBr, H_2O$

For making a distinction between $2$-pentanone and $3$-pentanone,the reagent to be employed is

Which of the following statements regarding chemical properties of acetophenone are wrong?
$(1)$ It is reduced to methyl phenyl carbinol by sodium and ethanol
$(2)$ It is oxidised to benzoic acid with acidified $KMnO_4$
$(3)$ It does not undergo electrophilic substitution like nitration at meta position
$(4)$ It does not undergo iodoform reaction with iodine and alkali

Methyl alcohol $(CH_3OH)$,ethyl alcohol $(C_2H_5OH)$,and acetone $(CH_3COCH_3)$ were treated with iodine and sodium hydroxide solutions. Which substances will give the iodoform test?

The reaction $CH_3CHO \xrightarrow[Zn(Hg)/Conc. HCl]{[H]} CH_3CH_3$ is known as: