Consider the following set of reactions

What are $A$ and $B$ respectively?

Which of the following can undergo Hell-Volhard-Zelinsky reaction?

What is $C$ in the given sequence of reactions?

$\mathrm{NH}_2 \mathrm{CONH}_2+2 \mathrm{H}_2 \mathrm{O} \rightarrow[\mathrm{X}] \rightleftharpoons 2 \mathrm{NH}_3+\mathrm{H}_2 \mathrm{O}+[\mathrm{Y}]$

The hybridisation of carbon in $X$ and $Y$ respectively are

In the given reaction sequence sequence, $Z$ is

In the following reaction ' $C$ ' is an aromatic compound having substitutents $D$ and $E$. What are $D$ and $E$ ?

The correct order of $\mathrm{p} K_a$ of the following is

$ \underset{\mathrm{I}}{\mathrm{CCl}_3 \mathrm{COOH}} \quad \underset{\mathrm{II}}{\mathrm{CF}_3 \mathrm{COOH}} $

$ \underset{\text { III }}{\mathrm{NO}_2 \mathrm{CH}_2 \mathrm{COOH}} \underset{\text { IV }}{\mathrm{NCCH}_2 \mathrm{COOH}} $

The major product of the following reactions

Which of the following set of compounds react with $\mathrm{NaHCO}_3$ ?

$n$ - propanol on treatment with concentrated HBr gives $P$. The product $P$ on reaction with KCN gave the product $Q$. The product $Q$ on heating with aqueous acidic solution, furnished the product $R$. The product ' $R$ ' is

The reagent that can reduce the carboxylic acid group to the corresponding alcohol is

$ \text { The major product in the following reaction is } $

$ \text { The major product formed in the following reaction is } $

$ \text { Predict } A \text { and } B \text { in the following reaction sequence : } $

$ \mathrm{CH}_3-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{COOH} $

$ \xrightarrow[\text { Red phosphorus }]{\mathrm{Br}_2} A \xrightarrow{\mathrm{KOH} \text { (alc.) }} B$

What is the product $R$ in the following reaction sequence?

$ \text { In the following reactions, } P, Q \text { and } R \text { are } $