InterviewSolution
Saved Bookmarks
InterviewSolution
| 1. |
Which of the following on reaction with nitrous acid followed by treatment with NaOH produces a blood red colouration?A. `R CH_(2)NO_(2)`B. `R_(3)CNO_(2)`C. `R_(2)CHNO_(2)`D. `PhNO_(2)` |
|
Answer» `R-underset(NO_(2))underset(|)(C)H_(2)+HNO_(2)rarrR-underset("Nitrolic acid")underset(NO_(2))underset(|)(C )=N-OH` Nitrolic acid dissolve in NaOH to give blood red colouration. `R-underset(NO_(2))underset(|)overset(R )overset(|)(C )-R+HNO_(2)rarr"No reaction"` `R-underset(NO_(2))underset(|)overset(R) overset(|)(C)-H+HO-N=Orarrunderset("give blue colouration")underset("Does not dissolve in NaOH but")underset(("Pseudonitrole"))(R-underset(NO_(2))underset(|)overset(R )overset(|)(C )-N)=O+H_(2)O` |
|