The product which cannot be formed is

1.  

2.  

3.  

4.  

The product formed in this reaction is

1.          2.  

3.           4.  

The major product of the given reaction is

1.              2.  

3.               4.  

In which of the following reaction equilibrium will shift towards right?

1.         2.  

3.        4.  

1.                  2.  

3.        4.  

Wolf Kishner reduction cannot be used in which of the following?

1.            2.   

3.                4.  

Among the following esters, form a pair of least reactive and most reactive ester towards hydrolysis is-

1.  V. III

2.  VI, II

3.  I, IV

4.  I, V

The ${\mathrm{pK}}_{\mathrm{a}}$ values of some of the acids are given below

What is the correct order of leaving the ability of their conjugate bases?

1.  

2.  

3.  

4.  

${\mathrm{CH}}_3{\mathrm{NO}}_2\stackrel{\left(3{{\mathrm{Cl}}_{2_{}}}_{}+<mspace\; width="1em"></mspace>3\mathrm{NaOH}\right)}{\to }<mspace\; width="1em"></mspace>\mathrm{P}.<mspace\; width="1em"></mspace>\text{'}\mathrm{P}\text{'}<mspace\; width="1em"></mspace>\mathrm{is}$

1. ${\mathrm{CCl}}_3\mathrm{CHO}$

2. ${\mathrm{CCl}}_3{\mathrm{NO}}_2$

3. ${\mathrm{CHCl}}_3$

4. ${\mathrm{CHCl}}_2{\mathrm{NO}}_2$

Consider the following sequential reaction:
\(\begin{aligned} &\mathrm{RCH}=\mathrm{CH}_2 \xrightarrow[\mathrm{Zn} / \mathrm{H}_2 \mathrm{O}]{\mathrm{O}_3}(\mathrm{~A}) \xrightarrow{\mathrm{LAH}}(\mathrm{~B})+\text { (C), }\\ &\text { (B) and (C) are: } \end{aligned}\)
 

1.  RCHO and HCHO

2.  RCOOH and HCOOH

3. \(\mathrm{RCH}_3 \mathrm{OH} \text { and } \mathrm{HCOOH}\)

4.