A key step in the hydrolysis of acetamide in aqueous acid proceeds by nucleophilic addition of :

(1) ${\mathrm{H}}_3{\mathrm{O}}^{+}$ to    $O$
$\left|\right|$
$C{H}_{3}C N{H}_2$                       

(2)  ${\mathrm{H}}_2\mathrm{O}$ to    $+OH$
$\left|\right|$
$C{H}_{3}C N{H}_2$

(3) ${\mathrm{H}}_3{\mathrm{O}}^{+}$ to  $+OH$
$\left|\right|$
$C{H}_{3}CN{H}_2$                        

(4) ${\mathrm{HO}}^{-}$ to $+OH$
$\left|\right|$
$C{H}_{3}CN{H}_2$

All but one of the following compounds react with aniline to give acetanilide. Which one does not?

$\to$ 

   $$\begin{gathered} O \\ \left|\right| \\ \left(a\right) C{H}_{3}C-Cl \end{gathered}$$                        (b) 

(c) $$\begin{gathered} O \\ \mathbf{\left|}\mathbf{\right|} \\ C{H}_{3}C-H \end{gathered}$$                            (d) 

$\underset{{\mathrm{H}}_2\mathrm{O}}{\overset{{\mathrm{LiAlH}}_4\left(\mathrm{excess}\right)}{\to }}$ Product of the reaction is :

1.                               
2. 

3.                 
4. 

 $$\begin{gathered} C{H}_2‐O‐COR \\ | \\ CH‐O‐CO{R}_2 \\ | \\ C{H}_2‐O‐CO{R}_3 \end{gathered}$$+ $3\mathrm{NaOH} \to \left(\mathrm{A}\right)$ + Salt of fatty acid (soap)

Product (A) of the reaction is :

(a) Ethylene glycol                                    (b) Glycerol

(c) Glyceryltrinitrate (explosive)                 (d) Cumene hydrogen peroxide

(A) ; Product (A) of the reaction is :

1.        
2. 

3.                
4. 

 $$\begin{gathered} O \\ \left|\right| \\ Ph—C—Cl \end{gathered}$$+  $\to$: Identify the product (A).

(a)        (b)        

 (c)            (d)  

Which is the major product of the following reaction?

1. 
2. 

3. 

4. 

$\stackrel{{\mathrm{PCl}}_5}{\to }$(A) $\stackrel{{\mathrm{LiAlH}}_4}{\to }$(B) $\stackrel{\mathrm{PCC}}{\to }$(C) $\underset{∆}{\overset{{\mathrm{HO}}^{-}}{\to }}$(D)

(a) 
  (b)  
(c)  
(d) 

Which of the following compounds will undergo decarboxylation on heating?

1. 2 and 3           

2. 3 and 4                 

3. 3 only                   

4. 1 and 4

$\underset{\mathrm{dry} \mathrm{HCl} \mathrm{gas} (\mathrm{major} \mathrm{product});}{\overset{3\mathrm{eq}. \mathrm{EtOH}}{\to }}$ (A); Product A is :

(a)                      (b) 

(c)                       (d)