Which is gem dihalide?

1. ${\mathrm{CH}}_3.{\mathrm{CHBr}}_2$                           
2. ${\mathrm{CH}}_2\mathrm{Br}.{\mathrm{CH}}_2\mathrm{Br}$ 
3. ${\mathrm{CH}}_3.\mathrm{CHBr}.{\mathrm{CH}}_2\mathrm{Br}$                   
4. None of the above

Friedel-Craft's reaction of bromobenzene with methyl iodide gives:

1. o-bromotoluene                     

2. p-bromotoluene

3. o-and p-bromotoluenes             

4. m-bromotoluene

Benzyl chloride (C₆H₅CH₂Cl) can be prepared from toluene by chlorination with:

1. SO₂Cl₂

2. SOCl

3. S₂Cl₂

4. NaOCl₂

When vinyl chloride is passed through alcoholic KOH solution:

1. it dissolves                                 

2. it forms vinyl alcohol

3. it forms acetylene                     

4. it has no action

In the following reaction sequence, what is the final product, compound 'Z'?

1.	mixture of
2.
3.
4.

The reaction, RCl +NaI $\stackrel{\mathrm{Acetone}}{\to }\mathrm{R}-\mathrm{I}$ + NaCl is known as:

1. Wurtz reaction                     

 2. Fittig reaction                       

3. Frankland's reaction             

 4. Finkelstein's reaction                               

Elimination of HBr from 2-bromobutane results in the formation of:

1. equimolar mixture of 1- and 2-butene

2. predominantly 2-butene

3. predominantly 1-butene

4. predominantly 2-butyne

When (CH₃)₃CMgCl reacts with D₂O, it produces:

Benzoyl Chloride is prepared from benzoic acid by:

1. Cl₂, hv

2. SO₂Cl₂

3. SOCl₂

4. Cl₂, H₂O