To carry out the following conversion,arrange the reagents in the correct order:
$O_3/Zn$ $(1)$
$EtONa/EtOH/\Delta$ $(2)$
$NaOCl$ $(3)$
$H^{+}$ $(4)$

Which of the following does not give an Aldol condensation reaction?

Which of the following is used to detect aldehydes?

Consider the reactions and identify $A, X, Y$ and $Z$:
$X (C_2H_6O)$ $\xrightarrow{Cu, 573 \ K} A$ $\xrightarrow{[Ag(NH_3)_2]^+, ^-OH, \Delta} \text{Silver mirror}$
$A \xrightarrow{^-OH, \Delta} Y$
$A \xrightarrow{NH_2NHCONH_2} Z$

The iodoform test can differentiate between:
$A$. Methanol and Ethanol
$B$. $CH_3COOH$ and $CH_3CH_2COOH$
$C$. Cyclohexene and cyclohexanone
$D$. Diethyl ether and Pentan$-3-$one
$E$. Anisole and acetone
Choose the correct answer from the options given below:

The reaction of hydrazine $(NH_2NH_2)$ with aldehydes and ketones yields a compound with the general structure: