Practicing Success
Practicing Success
CUET Preparation Today
Statement I: Reaction of NH3 with dimethyl either fails to give methyl amine Statement II: −OCH3 is a good leaving group |
Both statement I and statement II are correct and statement II is the correct explanation of statement I Both statement I and statement II are correct but statement II is not the correct explanation of statement I Statement I is correct but statement II is false Statement I is false but statement II is correct |
Statement I is correct but statement II is false |
The answer is 3. Statement I is correct but statement II is false. Statement I is correct because the reaction of NH3 with dimethyl ether does not give methyl amine. This is because the −OCH3 group is a poor leaving group. A poor leaving group is a group that is difficult to remove from a molecule. In the case of dimethyl ether, the −OCH3 group is attached to a carbon atom by a single bond. This bond is relatively weak, and it is difficult for the −OCH3 group to break away from the carbon atom. Statement II is false because −OCH3 is not a good leaving group. A good leaving group is a group that is easily removed from a molecule. In the case of dimethyl ether, the −OCH3 group is not easily removed because it is attached to a carbon atom by a single bond. Therefore, statement I is correct but statement II is false. The correct explanation for why the reaction of NH3 with dimethyl ether does not give methyl amine is that the −OCH3 group is a poor leaving group. |
