The reagent is:

R-CH2-CCl2-RReagentR-CC-R

1. Na                                     
2. HCl in H2O
3. KOH in C2H5OH               
4. Zn in alcohol 

Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation |
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In the following reaction the catalyst used is:

         C6H6 + 3H2

1. Cr2O3                                      2. Al2O3

3. Zn dust                                    4. Cr2O3 and Al2O3

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties | Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
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Gammexane (a γ-isomer) is:

1. BHC                                         

2. Benzene hexachloride

3. Lindane                                     

4. All of the above

Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
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During ozonolysis of CH2=CH2, if hydrolysis is made in the absence of Zn dust, the products formed are:

1. HCHO 2. HCOOH 
3. CH3OH   4. CH2OHCH2OH
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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When 3,3-dimethyl-2-butanol is heated with conc. H2SO4, the major product obtained is:

1. 2,3-Dimethyl-2-butene

2. 3,3-Dimethyl-2-butene

3. 2,3-Dimethyl-1-butene

4. Cis and trans-isomers of 2,3-dimethyl-2-butene

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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In a reaction, 

CH2=CH2acidHypochlorousMRCH2OH|CH2OH

M = molecules, R = reagent. M and R are

1. CH3CH2Cl and NaOH

2. CH2Cl.CH2OH and aq. NaHCO3

3. CH3CH2OH and HCl

4.  and heat

Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation |
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Ozonolysis (O3H2O) of, CH3-CH|CH3-CC-CH3 gives :

1.  CH3CH|CH3COOHCH3COOH

2. CH3CH|CH3CHO + CH3CHO

3. CH3CH|CH3CHO + CH3COOH

4. none of the above

 

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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When CaC2 was hydrolysed a gas was obtained. It had a garlic odour due to phosgene present as impurity. The gas was passed through ammoniacal solution of Cu2Cl2, a red ppt. was obtained. The gas was:

1. Ethylene                                       2. Propyne

3. Acetylene                                      4. Ethane

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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Products of the following reaction

CH3CCCH2CH3(ii)Hydrolysis(i) O3... are

1. CH3CHO + CH3CH2CHO

2. CH3COOH + CH3COCH3

3. CH3COOHHOOC.CH2CH3

4. CH3COOHCO2

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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Which reaction produces acrylonitrile (CH2=CHCN)?

1. Ethyne Ba2+HCN                           

2. Acrylic acid KCN

3. Ethyne KCN                           

4. Ethyne HOCl

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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