Which of the following molecules can exhibit optical activity?
1. 1-Bromopropane
2. 2-Bromobutane
3. 3-Bromopentane
4. Bromocyclohexane
The given reaction will be the fastest in which of the following solvents?
CH3 CH2 CH2 Br + NaCN - CH3 CH2 CH2 CN + NaBr
1. Ethanol
2. Methanol
3. N, N'-dimethylformamide (DMF)
4. Water
Which of the following is the halogen exchange reaction?
| 1. | R X + NaI \(\xrightarrow{\text{ Acetone }}\) RI + NaX |
| 2. | |
| 3. | R - OH + HX \(\xrightarrow{\text{ ZnCl}_2~~}\) R - X + H2O |
| 4. | ![]() |
1. Finkelstein reaction.
2. Sandmeyer's reaction.
3. Gattermann reaction.
4. Swart's reaction.
The most reactive compound for SN2 reaction among the following is:
| 1. | ![]() |
2. | ![]() |
| 3. | ![]() |
4. | ![]() |
Identify the reaction given above:
| 1. | Swarts reaction | 2. | Finkelstein reaction |
| 3. | Gattermann reaction | 4. | Sandmeyer's reaction |
| Assertion (A): | The reactivity of alkyl halide for nucleophilic substitution reaction follows the order Rl > RBr > RCl |
| Reason (R): | Leaving ability of halide ions follows the order: I- > Br- > Cl- |
| 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. |
Match the compounds given in Column-I with suitable items given in Column-II:
|
Column-I (Compound) |
Column-II (Uses) |
||
|
A. |
Iodoform |
1. |
Fire extinguisher |
|
B. |
Carbon tetrachloride |
2. |
Insecticide |
|
C. |
CFC |
3. |
Antiseptic |
|
D. |
DDT |
4. |
Refrigerants |
Code
1. A → 2 B → 4 C →1 D →3
2. A → 3 B → 2 C →4 D →1
3. A → 1 B → 2 C →3 D →4
4. A → 3 B → 1 C →4 D →2
Chloroform is slowly oxidized by air in the presence of light and air to form:
1. Phosgene
2. Formyl chloride
3. Formaldehyde
4. Trichloroethanol