Which of the following species exhibits paramagnetism?

1. A carbocation 2. A free radical
3. A carbanion ion 4. All of the above

Subtopic:  Reaction Intermediates ; Preparation & Properties |
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 IUPAC name of the compound CH3CONH(Br) is:

1. 1-Bromoacetamide

2. N-Bromoethanamide

3. Ethanoyl bromide

4. None of the above

Subtopic:  Nomenclature |
 75%
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 compound obtained by heating a mixture of primary amine and chloroform with ethanolic potassium hydroxide (KOH) is                                                                          

1. an alkyl isocyanide

2. an alkyl halide

3. an amide

4. an amide and nitro compound

 69%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

advertisementadvertisement

Nitrobenzene on reaction with conc. HNO3/H2SO4 at 80-100°C forms -

1. 1,2-Dinitrobenzene

2. 1,3-Dinitrobenzene

3. 1,4-Dinitrobenzene

4. 1,2,4-Trinitrobenzene

Subtopic:  Aromatic Hydrocarbons - Reactions & Mechanism |
 59%
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

Ethyl chloride is converted into diethyl ether by -                                                  

 1. Wurtz reaction                           
 2. Grignard reaction
 3. Perkin's reaction                       
 4. Williamson's synthesis

Subtopic:  Mechanism of Reactions |
 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

Consider the following reaction,

PhenolZn-dustXAnhy.AlCl3CH3ClYAlk.KMnO4

The product Z is                            

1. toluene

2. benzaldehyde

3. benzoic acid

4. benzene

Subtopic:  Isomers & Reaction Mechanism |
 82%
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

advertisementadvertisement

In this reaction, CH3CHO + HCNCH3CH(OH)CNH.OHCH3CH(OH)COOH an asymmetric centre is generated. The acid obtained would be                                                                      

1. 50% D + 50% L-isomer

2. 20%D + 80% L-isomer

3. D-isomer

4. L-isomer

 72%
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints

The -OH group of an alcohol or the -COOH group of a carboxylic acid can be replaced by -Cl using     

1. phosphorus pentachloride

2. hypochlorous acid

3. chlorine

4. hydrochloric acid

Subtopic:  Aldehydes & Ketones: Preparation & Properties |
 74%
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

An ester is boiled with KOH. The product is cooled and acidified with conc. HCl. A white crystalline acid separates. The ester is

1. methyl acetate 

2. ethyl acetate

3. ethyl formate 

4. ethyl benzoate

Subtopic:  Acid Derivatives - Preparation, Properties & Uses |
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

advertisementadvertisement

The compound formed when malonic acid heated with urea, is                  

1. cinnamic acid

2. butyric acid

3. barbituric acid

4. crotonic acid

Subtopic:  Isomers & Reaction Mechanism |
To view explanation, please take trial in the course.
NEET 2025 - Target Batch
Hints