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

1.	Water	2.	Benzene
3.	Ether	4.	Toluene

The compound among the following that most easily converted into a dehydrohalogenation state is:

1.		2.
3.		4.

The final product Y in the below mentioned reaction is:

1.		2.
3.	CH3COOH	4.	CH3COOK

The products (A) and (B) in the below reactions are, respectively:

$1.$ ${\mathrm{POCl}}_3$ $\mathrm{and}$ ${\mathrm{H}}_3{\mathrm{PO}}_3$

$2.$ ${\mathrm{PCl}}_3$ $\mathrm{and}$ ${\mathrm{H}}_3{\mathrm{PO}}_3$

$3.$ ${\mathrm{H}}_3{\mathrm{PO}}_4$ $\mathrm{and}$ ${\mathrm{POCl}}_3$

$4.$ ${\mathrm{H}}_3{\mathrm{PO}}_3$ $\mathrm{and}$ ${\mathrm{POCl}}_3$

In the reaction sequence:
\(CHCl_3 \xrightarrow[]{\textbf{Air/hv}}\ X\ \xrightarrow[\textbf{Excess}]{\bf{C_6H_6\ /\ AlCl_3}}\ Y\)
The product Y is:

1. COCl₂

2. C₆H₅-CO-C₆H₅

3. C₆H₅CHO

4. C₆H₅COOH

At low temperature, the slow addition of molecular bromine (1 eq) to \(\mathrm{H}_2 \mathrm{C}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{C} \equiv \mathrm{CH}\) gives:
1. \(\mathrm{CH}_2=\mathrm{CH}-\mathrm{CH}_2-\mathrm{CBr}=\mathrm{CHBr} \)
2. \(\mathrm{BrCH}_2-\mathrm{CHBr}-\mathrm{CH}_2-\mathrm{C} \equiv \mathrm{CH} \)
3. \(\mathrm{H}_2 \mathrm{C}=\mathrm{CH}-\mathrm{CH}_2-\mathrm{CH}_2-\mathrm{CBr}_3 \)
4. \(\mathrm{CH}_3-\mathrm{CBr}_2-\mathrm{CH}_2-\mathrm{C} \equiv \mathrm{CH}\)

What is the total number of stereoisomers of CH₃-CH=CH-CHClCH₃ ?

1. 8

2. 3

3. 4

4. 2

Select the correct option based on statements below:

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

PCI₅ reacts with propanone to give:

1. gem-Dichloride

2. vic-Dichloride

3. Propanal

4. Propane chloride