Nitration of benzene is:

1. nucleophilic substitution

2. electrophilic substitution

3. electrophilic addition

4. nucleophilic addition

Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
 71%
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Which of the following compounds has the lowest boiling point?

1. CH3CH2CH2CH2CH3

2. CH3CH=CH-CH2CH3

3. CH3CH=CH-CH=CH2

4. CH3CH2CH2CH3

Subtopic:  Aliphatic Hydrocarbon- Physical Properties |
 75%
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CH3-CC-CH3NaNH2 X; what is X?

1. CH3-CH2CH2CH3

2. CH3CH2CCH

3. 

4. CH2=C=CH-CH3

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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Acetylene on reacting with hypochlorous acid gives:

1. CH2Cl.CHO 

2. ClCH2CHO

3. Cl2CH.CHO

4. ClCH2COOH

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
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Benzene reacts with CH3Cl in the presence of anhy. AlCl3 to form

1. toluene

2. chlorobenzene

3. benzylchloride

4. xylene

 

Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
 87%
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CHCHO3/NaOHXZn/CH3COOHY. Y is:

1. CH2OH-CH2OH 

2. CH3CH2OH

3. CH3COOH 

4. CH3OH

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 55%
From NCERT
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Alkynes can be reduced to alkenes by hydrogenation in presence of:

1. raney Ni 

2. anhy. AlCl3

3. Pd 

4. Lindlar's catalyst

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 63%
From NCERT
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Octane no. of a fuel can be increased by:

1. isomerism 

2. alkylation

3. reforming 

4. all of these

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 65%
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The shortest C-C bond distance is found in

1. diamond 

2. ethane

3. benzene

4. acetylene

Subtopic:  Aliphatic Hydrocarbon- Physical Properties |
 83%
From NCERT
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Benzene reacts with n-propyl chloride in the presence of anhydrous AlCl3 to give

1. 3-propyl-1-chlorobenzene

2. n-propyl benzene

3. no reaction

4. iso-propyl benzene

Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
 70%
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