The molecular formula of a saturated compound is C2H4Br2. This formula permits the existence of:

1. Functional isomers       

2. Optical isomers

3. Positional isomers        

4. Cis-trans isomers

Subtopic:  Structural Isomers |
 63%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

Which of the following may exist in enantiomorphs?

1.                   

2. CH2=CHCH2CH2CH3 

3.                  

4. 

Subtopic:  Stereo Isomers |
 67%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

The total number of isomers could be obtained from the alkane, C6H14 is-

1. Four                   

2. Five

3. Six                    

4. Seven

Subtopic:  Structural Isomers |
 64%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

CH3-CHCl-CH2-CH3 has a chiral center. Which one of the following represents its R-configuration? 

1.

2. 

3. 

4. 

Subtopic:  Stereo Isomers |
 66%
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints

The number of primary carbon atoms in the following compound are:

1. 6 2. 2
3. 4 4. 3
Subtopic:  Hybridisation & Structure of Carbon Compounds |
 86%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
Links
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

4-methylpent-2-ene is  achiral because it has:

1. a centre of symmetry 

2. a plane of symmetry 

3. symmetry at C 4 carbon

4. both centre and a plane of symmetry 

Subtopic:  Stereo Isomers |
 54%
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints

The (R)- and (S)-enantiomers of an optically active compound differ in

1. their solubility in a chiral solvent

2. their reactivity with a chiral reagent

3. their optical rotation of plane polarised light

4. their melting points

Subtopic:  Stereo Isomers |
 90%
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints

The cylindrical shape of an alkyne is due to the presence of- 

1. Three sigma C-C bonds

2. Three π C-C bonds

3. Two sigma C-C and one π C-C bonds

4. One sigma C-C and two π C-C bonds

Subtopic:  Hybridisation & Structure of Carbon Compounds |
 80%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

What is decreasing order of basicity of 1°, 2° and 3° ethyl amines and ammonia in aqueous medium?          

1. NH3>C2H5NH2>(C2H5)2NH>(C2H5)3N

2. (C2H5)3N>(C2H5)2NH>C2H5NH2> NH3

3. (C2H5)3NH>C2H5NH2>(C2H5)3N>NH3

4. (C2H5)2NH>(C2H5)3N>C2H5NH2>NH3

Subtopic:  Acidic & Basic Character |
 56%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh

The shortest C-C bond distance is found in               

1. Diamond             

2. Ethane

3. Benzene             

4. Acetylene

Subtopic:  Hybridisation & Structure of Carbon Compounds |
 67%
From NCERT
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh
Hints
To view explanation, please take trial in the course.
NEET 2021 - Achiever Batch - Aryan Raj Singh