In the following reaction,


Product A is-

1. 

2. 

3. 

4. 

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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The monochlorinated products (excluding stereo-isomers) obtained from the reaction is:

1. 4 

2. 5 

3. 6 

4. 7

 

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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3-Hexyne can be converted to trans-3-Hexene by the action of:

1. H2 - Pd/ BaSO4                       

2. Li-Liq. NH3

3. H2 - Pt O2                               

4. NaBH4

Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation |
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A compound having the shortest carbon-carbon bond length among the following is -

1. Benzene                                 

2. Ethene

3. Ethyne                                   

4. Ethane

Subtopic:  Aliphatic Hydrocarbon- Physical Properties |
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Reaction of HBr with propene in the presence of peroxide gives

1. iso-propyl bromide

2. 3-bromo propane

3. allyl bromide

4. n-propyl bromide

Subtopic:  Aliphatic Hydrocarbon - Methods of Preparation |
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The reaction of toluene with Cl2 in the presence of FeCl3 gives 'X' and reaction in presence of light gives 'Y'. Thus, 'X' and  'Y' are

1. X = benzal chloride, Y= o-chlorotoluene

2. X = m-chlorotoluene, Y= p-chlorotoluene

3. X = o and p-chlorotoluene, Y = trichloromethyl benzene

4. X = benzal chloride, Y = m-chlorotoluene

Subtopic:  Aromatic Hydrocarbons - Reactions & Mechanism |
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When acetylene is passed through dil. H2SO4 in presence of HgSO4, the compound formed is

1. ether 

2. ketone

3. acetic acid

4. acetaldehyde

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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Acetylenic hydrogens are acidic because

1. sigma electron density of C-H bond in acetylene is nearer to carbon which has 50% s-character

2. acetylene has only one hydrogen on each carbon

3. acetylene contains least number of hydrogens among the possible hydrocarbons having two carbons

4. acetylene belong to the class of alkynes with molecular formula CnH2n-2

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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A compound is treated with NaNH2 to give sodium salt. Identify the compound.

1. C2H2 

2. C6H6

3. C2H6 

4. C2H4

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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Ethylene forms ethylene chlorohydrin by the action of:

1. dry chlorine gas

2. dry hydrogen chlorine gas

3. solution of chlorine gas in water

4. dilute hydrochloric acid 

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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