The correct statement among the following is -

1. Allyl carbocation (CH2=CH-CH2+) is more stable than propyl carbocation

2. Propyl carbocation is more stable than allyl carbocation

3. Both are equally stable

4. None of the above

Subtopic:  Reaction Intermediates ; Preparation & Properties |
 68%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Sulphur trioxide act as:

1. An electrophile             

2. A nucleophile

3. A homolytic agent         

4. A base

Subtopic:  Nucleophile & Electrophile |
 59%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The correct order of nucleophilicity among the following is:

(I) CH3COO-

(II) CH3CO-

(III) CN-

(IV) 

1. I > II > III > IV

2. IV > III > II > I

3. II > III > I > IV

4. III > II > I > IV

Subtopic:  Nucleophile & Electrophile |
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

The compound which gives the most stable carbocation on dehydration:

1. CH3-CH-(CH3)- CH2OH
           

2. CH3 -C(CH3)2- OH

3. CH- CH- CH- CH2OH

4. CH3 -CH(OH)- CH2 - CH3

Subtopic:  Reaction Intermediates ; Preparation & Properties |
 71%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Allyl isocyanide has:

1. 9 σ, and 4π-bonds.

2. 8 σ, and 5π-bonds

3. 9 σ, and 3π-bonds, 

4. 8 σ, and 3 π bonds

Subtopic:  Hybridisation & Structure of Carbon Compounds |
 66%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Which of the following acids has the smallest dissociation constant?

(1) CH3CHFCOOH

(2) FCH2CH2COOH

(3) BrCH2CH2COOH

(4) CH3CHBrCOOH

Subtopic:  Acidic & Basic Character |
 63%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Which of the following resonating structures of 1-methoxy-1,3-butadiene is least stable ?

(1) C⊝H2 -CH=CH-CH=O⊕-CH3

(2) CH2=CH-C⊝H-CH=O⊕-CH3

(3) C⊝H2-C⊕H-CH=CH-O-CH3

(4) CH2=CH-C⊝H-C⊕H-O-CH3

Subtopic:  Electron Displacement Effects |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The least stable resonance structure among the following is:

1. 

2. 

3. 

4. 

Subtopic:  Electron Displacement Effects |
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

Hyperconjugation involves the overlap of the following orbitals:

1. σ - σ

2. σ - p

3. p - p

4. π - π

Subtopic:  Electron Displacement Effects |
 63%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh

The IUPAC name of the compound shown below is:

1. 2-bromo-6-chlorocyclohex-1-ene

2. 6-bromo-6-chlorocyclohexene

3. 3-bromo-1-chlorocyclohex-1-ene

4. 1-bromo-3-chlorocyclohexene

Subtopic:  Nomenclature |
 88%
From NCERT
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh