R-CH2-CCl2-R ReagentR-CC-R. The reagent is

1. Na

2. HCl in H2O

3. KOH in C2H5OH

4. Zn in alcohol

Subtopic:  Introduction and Physical Properties |
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Ethyl chloride is converted into diethyl ether by -                                                  

 1. Wurtz reaction                           
 2. Grignard reaction
 3. Perkin's reaction                       
 4. Williamson's synthesis

Subtopic:  Mechanism of Reactions |
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The alkyl halide is converted into an alcohol by:                                    

1. Addition 2. Substitution
3. Dehydrohalogenation 4. Elimination
Subtopic:  Introduction and Physical Properties |
 74%
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What is produced when Br2 is added to cis-but-2-ene?

1. Racemic mixture of 2,3-Dibromobutane

2. Meso form of 2,3-Dibromobutane

3. Dextro form of 2,3-Dibromobutane

4. Laevo form of 2,3-Dibromobutane 

Subtopic:  Isomerism & Chirality |
 70%
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When ethane and bromine are allowed to interact in sunlight, how many distinct substitution products are possible?

1. 9 2. 6
3. 8 4. 5
Subtopic:  Chemical Properties | Isomerism & Chirality |
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 , Cl obtained by chlorination of n-butane, will be                

1. meso form              

2. racemic mixture

3. d-form                 

4. l-form

Subtopic:  Mechanism of Reactions |
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The reactivity order of halides for dehydrohalogenation is 

1. R-F>R-Cl>R-Br>R-I

2. R-I>R-Br>R-Cl>R-F

3. R-I>R-Cl>R-Br>R-F

4.  R-F>R-I>R-Br>R-Cl

Subtopic:  Chemical Properties |
 71%
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In SN2 reactions, the correct order of reactivity for the following compounds : CH3ClCH3CH2ClCH32CHCl and CH33CCl is :

1. CH3Cl>CH32CHCl>CH3CH2Cl>CH33CCl

2. CH3Cl>CH3CH2Cl>CH32CHCl>CH33CCl

3. CH3CH2Cl>CH3Cl>CH32CHCl>CH33CCl

4. CH32CHCl>CH3CH2Cl>CH3Cl>CH33CCl

Subtopic:  Mechanism of Reactions |
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Action of RMgX with vinyl chloride gives:

1. alkane                                 

2. alkyne

3. alkene                                 

4. all of these

 

Subtopic:  Mechanism of Reactions |
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What would be the product formed when 1-bromo-3-chlorocyclobutane reacts with two equivalents of metallic sodium in ether?

1.   

2. 

3.    

4. 

Subtopic:  Mechanism of Reactions |
 73%
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