The monochlorinated products (excluding stereo-isomers) obtained from the reaction is:

(1) 4            (2) 5              (3) 6            (4) 7

 

Concept Questions :-

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

Concept Questions :-

Alkanes, Alkenes and Alkynes -Methods of Preparation
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Which one of the following has the shortest carbon-carbon bond length?

1. Benzene                                  2. Ethene

3. Ethyne                                    4. Ethane

Concept Questions :-

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

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In Friedel-Craft's synthesis of toluene, the reactants in addition to anhydrous AlCl3 are

(a) C6H5Cl + CH4

(b) C6H5Cl + CH3Cl

(c) C6H6 + CH4

(d) C6H6 + CH3Cl

Concept Questions :-

Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions
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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

Concept Questions :-

Aromatic Hydrocarbons - Functional Groups, Directive Influence in Monosubstituted Benzene
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In the reaction, C6H5CH3OxidationNaOHBSoda lime

the product C is:

1. C6H5OH                              2. C6H6

3. C6H5COONa                        4. C6H5ONa

Concept Questions :-

Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions
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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

Concept Questions :-

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

Concept Questions :-

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

(a) C2H2                                 (b) C6H6

(c) C2H6                                 (d) C2H4

Concept Questions :-

Alkanes, Alkenes and Alkynes - Chemical Properties
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