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 |
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 |
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. | |
1. | Nucleophilic aromatic substitution reaction |
B. | |
2. | Electrophilic aromatic substitution |
C. | |
3. | Saytzeff elimination |
D | 4. | Electrophilic addition |
|
5. | Nucleophilic substitution reaction |
Codes:
A | B | C | D | |
1. | 2 | 4 | 5 | 1 |
2. | 3 | 1 | 5 | 2 |
3. | 5 | 4 | 3 | 2 |
4. | 4 | 5 | 3 | 2 |
Match the structures given in Column I with the names in Column II.
Column I | Column II | ||
A. | 1. | 4-Bromopent-2-ene | |
B. | 2. | 4-Bromo-3-methylpent-2-ene | |
C. | 3. | 1-Bromobut-2-ene | |
D. | 4. | 1-Bromo-2-methylpent-2-ene |
Codes:
A | B | C | D | |
1. | 2 | 3 | 4 | 1 |
2. | 1 | 2 | 3 | 4 |
3. | 1 | 4 | 3 | 2 |
4. | 4 | 1 | 3 | 2 |
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 |
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. |
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. |
Select the correct option based on statements below:
Assertion (A): | KCN reacts with methyl chloride to give methyl isocyanide. |
Reason (R): | \(CN^-\) is an ambident nucleophile. |
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. |
Select the correct option based on statements below:
Assertion (A): | The presence of a nitro group at ortho or para position increases the reactivity of haloarenes towards nucleophilic substitution. |
Reason (R): | The nitro group, being an electron-withdrawing group, decreases the electron density over the benzene ring. |
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. |
Select the correct option based on statements below:
Assertion (A): | In monohaloarenes, further electrophilic substitution occurs at ortho and para positions. |
Reason (R): | The halogen atom is a ring deactivator. |
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. |