Sandmeyer's reaction described by among the following is:

1.
2.
3.
4.

The X and Y in the below mentioned reaction are

When vinyl chloride is passed through an alcoholic KOH solution, which of the following is correct?

1. It gets dissolved.                              

2. It forms vinyl alcohol

3. It forms acetylene                     

4. It has no action

The product (C) in the below-mentioned reaction is:
\(CH_{3}CH_{2}CH_{2}Br \ \xrightarrow[]{\textbf{KOH(alc.)}} \)
\(\ (A) \ \xrightarrow[]{\textbf{HBr}} \ (B) \ \xrightarrow[]{\textbf{KOH(aq}} \ (C)\)

\(HC\equiv CNa \ + \ Cl-CH_{2}-CH_{2}-CH_{2}-I \ \rightarrow \ (A) \)
The major product (A) in the above reaction is :

1. H-C$\equiv$C-CH₂-CH₂-CH₂-I

2. CH₂=CH-CH₂-I

3. H-C$\equiv$C-CH₂-CH₂-CH₂-Cl

4. CH₂=CH-CH₂-Cl

The set of reagents used to produce freon (CCl₂F₂) are:

Which of the options is correct about product (A)?

1. Product is aromatic  

2. Product has a high dipole moment

3. Product has less resonance energy          

4. Both A and B

Which of the following reactions cannot form new carbon-carbon bonds?

1. Reimer-Tiemann reaction

2. Cannizaro reaction

3. Wurtz reaction

4. Friedel-Crafts acylation

What is the name of the following reaction?
  \(\mathrm{C}_2 \mathrm{H}_5 \mathrm{Cl}+\mathrm{AgF} \rightarrow C_2 \mathrm{H}_5 \mathrm{~F}+\mathrm{AgCl}\)

1. Finkelstein reaction

2. Swarts reaction

3. Hunsdiecker reaction

4. HVZ reaction

For $S_{N}1$ reaction, the preferred solvent will be: