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What results from treating chloromethane with excess ammonia?
1. N, N-dimethylmethanamine (\(N{(CH_3)}_{3}\))

2. N-methylmethanamine (CH3-NH—CH3)

3. Methanamine (CH3NH2)

4. Mixture containing all these in equal proportion

Subtopic:  Mechanism of Reactions |
 51%
Level 3: 35%-60%
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The reaction below is an example of:

1. Addition reaction.

2. SN1 reaction

3. Elimination reaction.

4. SN2 reaction

Subtopic:  Mechanism of Reactions |
 66%
Level 2: 60%+
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Which of the following is an enantiomer of the given molecule?
 

1.  2.
3. 4.
Subtopic:  Isomerism & Chirality |
 61%
Level 2: 60%+
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Match the items in Column I and Column II.

Column l Column ll
A. SN1 reaction 1. Vic-dibromide
B. Elimination of HX from an alkyl halide 2. Chlorobromocarbons
C. Bromination  of alkenes  3. Racemisation
D. Chemicals in fire extinguisher 4. Saytzeff rule 

Codes:

A B C D
1. 2 3 4 1
2. 3 4 1 2
3. 1 4 3 2
4. 4 1 3 2
Subtopic:  Chemical Properties |
 88%
Level 1: 80%+
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Match the structures of compounds given in Column I with the classes of compounds given in Column II.

Column I Column II
A.   1. Aryl halide
B.   2. Alkyl halide
C.   3. Vinyl halide
D. 4. Allylic halide

Codes:

A B C D
1. 2 4 1 3
2. 3 4 1 2
3. 1 4 3 2
4. 4 1 3 2
Subtopic:  Introduction and Physical Properties |
 85%
Level 1: 80%+
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Match the reactions given in Column I with the types of reactions given in Column II and mark the appropriate option.

Column-I Column-II
A. (i) Nucleophilic
aromatic
substitution
reaction
B.  

(ii) Electrophilic
aromatic
substitution
C.  

(iii) Saytzeff
elimination
D

(iv) Electrophilic
addition

(v) Nucleophilic
substitution
reaction

Codes:

A B C D
1. (ii) (iv) (v) (i)
2. (iii) (i) (v) (ii)
3. (v) (iv) (iii) (ii)
4. (iv) (v) (iii) (ii)
Subtopic:  Chemical Properties |
 75%
Level 2: 60%+
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 Match the structures given in Column-I with the IUPAC names in Column-II.

Column-I (Structure) Column-II  (IUPAC Name)
A. (i) 4-Bromopent-2-ene
B. (ii) 4-Bromo-3-methylpent-2-ene
C. (iii) 1-Bromobut-2-ene
D. (iv) 1-Bromo-2-methylpent-2-ene

Codes:

A B C D
1. (ii) (iii) (iv) (i)
2. (i) (ii) (iii) (iv)
3. (i) (iv) (iii) (ii)
4. (iv) (i) (iii) (ii)
Subtopic:  Introduction and Physical Properties |
 89%
Level 1: 80%+
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The correct match of column I (Reactions) with column II (Name of reactions) is:

Column I Column II
A. 1. Fittig reaction
B. 2. Wurtz-Fittig reaction
C. 3. Finkelstein reaction
D. 4. Sandmeyer reaction

Codes:

A B C D
1. 2 1 4 3
2. 3 1 4 2
3. 1 4 3 2
4. 4 1 3 2
Subtopic:  Chemical Properties |
 92%
Level 1: 80%+
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Select the correct option based on statements below:

Assertion (A): Phosphorus chlorides (tri and Penta) are preferred over thionyl chloride for the preparation of alkyl chlorides from alcohols.
Reason (R): Phosphorus chlorides give pure alkyl halides.
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. Both (A) and (R) are False.
Subtopic:  Chemical Properties |
 73%
Level 2: 60%+
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Select the correct option based on statements below:

Assertion (A): The boiling points of alkyl halides decrease in the order RI> RBr > RCl > RF
Reason (R): The boiling points of alkyl chlorides, bromides, and iodides are considerably higher than those of the hydrocarbons of comparable molecular mass.
 
1. Both (A) and (R) are True and (R) is the correct explanation of (A).
2. Both (A) and (R) are True but (R) is not the correct explanation of (A).
3. (A) is True but (R) is False.
4. (A) is False but (R) is True.
Subtopic:  Introduction and Physical Properties |
 61%
Level 2: 60%+
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