$CH_3-CO-CH_3$ $\xrightarrow{I_2/NaOH} \underset{\text{yellow compound}}{(A)} + (B)$ $\xrightarrow{Ag - \text{powder}, \Delta} (C)$ $\xrightarrow{Dil. H_2SO_4/HgSO_4} (D)$
$A, C$ and $D$ are :-

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 following reagent converts $C_6H_5COCHO$ to $C_6H_5CHOHCOONa$.

Given below are the four isomeric compounds $(P, Q, R, S)$. Identify the correct statements from below.
$A$. $Q, R$ and $S$ will give a precipitate with $2,4-DNP$.
$B$. $P$ and $Q$ will give a positive Bayer's test.
$C$. $Q$ and $R$ will give a sooty flame.
$D$. $R$ and $S$ will give a yellow precipitate with $I_2/NaOH$.
$E$. $Q$ alone will deposit silver with Tollen's reagent.
Choose the correct option.

Assertion $(A)$: Ammonia and its derivatives of the form $H_2N-Z$ undergo condensation reaction with carbonyl compounds (aldehydes and ketones).
Reason $(R)$: This reaction is an example of an irreversible reaction.
The correct option among the following is:

The compound that $CANNOT$ be obtained from the aldol condensation reaction shown below, is