A group that deactivates the benzene ring towards electrophilic substitution but which directs the incoming group principally to the o- and p-position is.

1. -NH2                   
2. -Cl
3. -NO2                   
4. -C2H5

Subtopic:  Types of Reaction |
 52%
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

In the given conformation C2 is rotated about C2-C3 bond anticlockwise by an angle of 120° then the conformation obtained is

1. Fully eclipsed conformation

2. Partially eclipsed conformation

3. Gauche conformation

4. Staggered conformation

Subtopic:  Conformational Isomers |
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

What is the decreasing order of stability of the carbocation ions?

1. I>II>III          

2. II>III>I

3. III>I>II          

4. II>I>III

 

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

The most acidic compound among the following is:

1. o-Cresol        2. p-Nitrophenol
3. Phenol         4. m-Cresol
Subtopic:  Acidic & Basic Character |
 86%
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 basicities of the following compounds is:

(1)

(2) CH3-CH2-NH2

(3) (CH3)2NH

(4) CH3-C||O-NH2

1. 2>1>3>4         

2. 1>3>2>4

3. 3>1>2>4         

4. 1>2>3>4

Subtopic:  Acidic & Basic Character |
 55%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

Consider the acidity of the following carboxylic acids

(i) PhCOOH

(ii) o-NO2C6H4COOH

(iii) p-NO2C6H4COOH

(iv)m-NO2C6H4COOH

1. i>ii>iii>iv

2. ii>iv>iii>i

3. ii>iv>i>iii

4. ii>iii>iv>i

Subtopic:  Acidic & Basic Character |
 73%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

The IUPAC name of   

1. 2,3-diethyl butane

2. 3,4-dimethyl hexane

3. 3-methyl pentane

4. 2-ethyl 3-methyl pentane

Subtopic:  Nomenclature |
 70%
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

Hybridisation of N in pyrrole  is

1. sp                               
2. sp2
3. sp3                             
4. sp3d

Subtopic:  Hybridisation & Structure of Carbon Compounds |
 58%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints

The most reactive of these compounds towards sulphonation is

1. Toluene                2. Chlorobenzene

3. Nitrobenzene        4. m-Xylene

Subtopic:  Nucleophile & Electrophile |
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

In the above compound, arrange the nitrogen according to their decreasing basic strength.

1. 1>2>3>4

2. 4>3>1>2

3. 2>4>1>3

4. 3>4>1>2

Subtopic:  Acidic & Basic Character |
 60%
To view explanation, please take trial in the course.
NEET 2023 - Target Batch - Aryan Raj Singh
Hints