$2CH_3COCH_3 \xrightarrow{Mg/Hg, H^{+}} \text{Product}$,the product in the reaction is:

Which one of the following compounds will give an orange precipitate when treated with $2,4-$dinitrophenylhydrazine?

Identify $X, Y$ and $Z$ respectively from the following reactions:

Select the option in which the incorrect major product is shown.

Reactant of Column-$I$ when reacted with acetaldehyde in the presence of $H^{+}$ gives the product given in Column-$II$ and their names are given in Column-$III$. Match the reactants in Column-$I$ with the products in Column-$II$ and their names in Column-$III$.

Column-$I$ (Reagent)	Column-$II$ (Product) and Column-$III$ (Name)
$A$. Ammonia $(NH_{3})$	$i$. $CH_{3}CH=NCH_{3}$; $m$. Acetaldehyde hydrazone
$B$. Amine $(CH_{3}NH_{2})$	$ii$. $CH_{3}CH=NNH_{2}$; $n$. Acetaldehyde oxime
$C$. Hydroxyl amine $(NH_{2}OH)$	$iii$. $CH_{3}CH=NH$; $o$. Acetaldehyde imine
$D$. Hydrazine $(NH_{2}NH_{2})$	$iv$. $CH_{3}CH=NOH$; $q$. Acetaldehyde methyl imine

Reagent $X$ in the given reaction is:
(Image shows cyclohexanone being converted to cyclohexanol with a deuterium atom attached to the same carbon as the hydroxyl group.)