Which of the following is not the characteristic of arenes:
1. More stability
2. Resonance
3. Delocalization of π electrons
4. Electrophilic addition

Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
 76%
From NCERT
AIPMT - 1998
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When 2-Bromopentane reacts with ethanolic KOH, the main product that is formed is:

1. Cis-2-pentene 2. Trans-2-pentene
3. 1-pentene 4. None of the above
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 64%
From NCERT
AIPMT - 1998
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Phenylacetylene undergoes a reaction with dilute H2SO4 in the presence of HgSO4 to yield:
 

1. 2.
3. 4.
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 73%
From NCERT
AIPMT - 1999
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Compound 'A' on chlorination gives compound 'B'. 'B' reacts with alc. KOH to give gas 'C' which decolorizes Baeyer reagent. Ozonolysis of compound 'C' gives only HCHO compound. Compound 'A' is

1. C2 H6 2. C2H4
3. C4H10 4. C2H5Cl

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 65%
From NCERT
AIPMT - 1999
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The increasing order of electrophilic substitution for the following compounds is:

 

1. IV<I<II<III 2. III<II<I<IV
3. I<IV<III<II 4. II<III<I<IV
Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
 73%
From NCERT
AIPMT - 2000
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In Friedel craft reaction, Toluene can be prepared by:

1. C6H6 + CH3Cl

2. C6H5Cl + CH4

3. C6H6 + CH2Cl2

4. C6H6 + CH3COCl

Subtopic:  Aromatic Hydrocarbons - Benzene - Structure, Preparation & Chemical Reactions |
 90%
From NCERT
AIPMT - 2000
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The reagent used to convert propene to 1-propanol is:

1. H2O, H2SO4

2. B2H6, H2O2, OH

3. Hg(OAc)2, NaBH4/H2O

4. Aq. KOH

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 73%
From NCERT
AIPMT - 2000
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On ozonolysis, the alkene that gives the following product is:

1.
2. \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}=\mathrm{CHCH}_2 \mathrm{CH}_3\)
3. \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}=\mathrm{CHCH}_3\)
4.
Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 91%
From NCERT
AIPMT - 2001
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A compound possessing optical isomerism provided it has the molecular formula C7H16, would be:

1. 2,3-Dimethyl pentane 2. 2,2-Dimethyl butane
3. 2-Methyl hexane 4. None of the above
Subtopic:  Alkanes, Alkenes and Alkynes - Conformations and Hybridisation |
 73%
From NCERT
AIPMT - 2001
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The compound  on reaction with NaIO4 in the presence of KMnO4 gives:

1. CH3COCH3

2. CH3COCH3 + CH3COOH

3. CH3COCH3 + CH3CHO

4. CH3CHO + CO2

Subtopic:  Alkanes, Alkenes and Alkynes - Chemical Properties |
 71%
From NCERT
AIPMT - 2003
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