Paper chromatography is an example of:

1. Partition chromatography

2. Thin layer chromatography

3. Column chromatography

4. Adsorption chromatography

Subtopic:  Purification of Organic Compounds |
 56%
From NCERT
NEET - 2020
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A tertiary butyl carbocation is more stable than a secondary butyl carbocation because-

1. + R effect of CH3 groups 

2. -R effect of - CH3  groups 

3. Hyperconjugation 

4. -l effect of -CH3 groups 

Subtopic:  Electron Displacement Effects | Reaction Intermediates ; Preparation & Properties |
 75%
From NCERT
NEET - 2020
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A liquid compound (x) can be purified by steam distillation only if it is:

1. Steam volatile, immiscible with water 

2. Not steam volatile, miscible with water

3. Steam volatile, miscible with water

4. Not steam volatile, immiscible with water

Subtopic:  Purification of Organic Compounds |
 72%
From NCERT
NEET - 2020
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The most stable carbocation among the following is:

1.  2.
3. 4.
Subtopic:  Reaction Intermediates ; Preparation & Properties |
 69%
From NCERT
NEET - 2019
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The compound which shows metamerism is: 

1. C3H6O 2. C4H10O
3. C5H12 4. C3H8O
Subtopic:  Structural Isomers |
 67%
From NCERT
NEET - 2021
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What is the correct structure of 2,6-Dimethyl-dec-4-ene?

1. 2.
3. 4.

Subtopic:  Nomenclature |
 82%
From NCERT
NEET - 2021
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The number of sigma (σ) and pi (π) bonds in pent-2-en-4-yne are:

1.  13 σ bonds and no π bond

2.  10 σ bonds and 3 π bonds

3.  8 σ bonds and 5 π bonds

4.  11 σ bonds and 2 π bonds

Subtopic:  Hybridisation & Structure of Carbon Compounds |
 86%
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NEET - 2019
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The compound that is most difficult to protonate is:

1. 2.
3. 4.
Subtopic:  Acidic & Basic Character |
 63%
From NCERT
NEET - 2019
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The Kjeldahl's method for the estimation of nitrogen can be used to estimate the amount of nitrogen in which one of the following compounds?
1.
2.
3. 4.
Subtopic:  Purification of Organic Compounds |
 67%
From NCERT
NEET - 2022
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The correct IUPAC name of the following compound is : 

1. 6-Bromo-4-methyl-2-chlorohexan-4-ol
2. 1-Bromo-5-chloro-4-methylhexan-3-ol
3. 6-Bromo-2-chloro-4-methylhaxan-4-ol
4. 1-Bromo-4-methyl-5-chorohexan-3-ol
Subtopic:  Nomenclature |
 75%
From NCERT
NEET - 2022
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