Sulphur trioxide is:

1. an electrophile              2. a nucleophile

3. a homolytic agent          4. a base

Subtopic:  Nucleophile & Electrophile |
 61%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Allyl isocyanide has:

1. 9σ and \(4\pi\) bonds.

2. 8σ and \(5\pi\) bonds.

3. 9σ, \(3\pi\) and 2 non-bonded electrons.

4. 8σ, \(3\pi\) and 4 non-bonded electrons.

Subtopic:  Hybridisation & Structure of Carbon Compounds |
 73%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

The least stable resonance structure among the following is:

 

Subtopic:  Reaction Intermediates ; Preparation & Properties |
 55%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

Hyperconjugation involves overlap of the following orbitals:

(1) σ - σ

(2) σ - p

(3) p - p

(4) π - π

Subtopic:  Electron Displacement Effects |
 61%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Buta-1,3-diene and But-2-yne are:

1. position isomers

2. functional isomers

3. chain isomers

4. tautomers

Subtopic:  Structural Isomers |
 77%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

In the following carbocations, the most stabile carbocation:

(1)  RCH2C+H3         (2) 

 

(3)                  (4) 

Subtopic:  Reaction Intermediates ; Preparation & Properties |
 87%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

The number of optical isomers of pent-3-en-2-ol is:

1. 2             
2. 4
3. 8             
4. 16

Subtopic:  Structural Isomers |
 62%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints
To view explanation, please take trial in the course.
NEET 2025 - Target Batch

Geometrical isomerism is caused:

1. by restricted rotation around C=C bond

2. by the presence of one asymmetric carbon atom

3. due to the different groups attached to the same functional group

4. by swing of hydrogen atom between two polyvalent atoms.

Subtopic:  Stereo Isomers |
 86%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

Which of the following is optically active?

(1) Alanine

(2) 2-butanol

(3) Lactic acid

(4) All of these

Subtopic:  Stereo Isomers |
 87%
From NCERT
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

Benzaldoxime exists in how many forms?

1. 1

2. 2

3. 3

4. 4

Subtopic:  Stereo Isomers |
 74%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints