The number of structural isomers possible from the molecular formula C3H9N is?
1. Four (4)
2. Five (5)
3. Two (2)
4. Three (3)
Mark the reaction that does not yield aniline from the given options:
| 1. | Hydrolysis of phenyl isocyanide with an acidic solution |
| 2. | Degradation of benzamide with bromine in alkaline solution |
| 3. | Reduction of nitrobenzene with H2/Pd in ethanol |
| 4. | Treatment of potassium salt of phthalimide with chlorobenzene followed by hydrolysis in an aqueous NaOH solution |
What is the name of the following reaction?
1. Friedel-Crafts reaction
2. Perkins reaction
3. Acetylation reaction
4. Schotten-Baumann reaction
What results from the electrolytic reduction of nitrobenzene in a highly acidic medium?
1. p-Aminophenol
2. Azoxybenzene
3. Azobenzene
4. Aniline
The product (A) in the below-mentioned
reaction is:
| 1. | |
| 2. | |
| 3. | |
| 4. |
The most stable diazonium salt among the following is:
1. \(CH_{3}N_{2}^{+}X^{-}\)
2. \(C_{6}H_{5}N_{2}^{+}X^{-}\)
3. \(CH_{3}CH_{2}N_{2}^{+}X^{-}\)
4. \(C_{6}H_{5}CH_{2}N_{2}^{+}X^{-}\)
Nitrobenzene on reaction with conc. HNO3 /H2SO4 at 80 – 100 ºC forms:
1. 1,3– Dinitrobenzene
2. 1,4–Dinitrobenzene
3. 1,2,4–Trinitrobenzene
4. 1,2–Dinitrobenzene
| 1. | |
| 2. | \(\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{NH}_2+\mathrm{HNO}_2 \rightarrow \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH}+\mathrm{N}_2 \) |
| 3. | \(\mathrm{CH}_3 \mathrm{NH}_2+\mathrm{C}_6 \mathrm{H}_5 \mathrm{SO}_2 \mathrm{Cl} \rightarrow \mathrm{CH}_3 \mathrm{NHSO}_2 \mathrm{C}_6 \mathrm{H}_5 \) |
| 4. | \(\left(\mathrm{CH}_3\right)_2 \mathrm{NH}+\mathrm{NaNO}_2+\mathrm{HCl} \rightarrow\left(\mathrm{CH}_3\right)_2 \mathrm{~N}-\mathrm{N}=\mathrm{O} \) |