The correct increasing order of basic strength for the following compounds is:
(I) | (II) | (III) |
1. II < III < I
2. III < I < II
3. III < II < I
4. II < I < III
Methylamine reacts with HNO2 to form-
1. | CH3-O-N=O | 2. | CH3-O-CH3 |
3. | CH3-OH | 4. | CH3CHO |
The gas evolved when methylamine reacts with nitrous acid is .............
1. NH3
2. N2
3. H2
4. C2H6
In nitration of benzene using a mixture of conc. H2SO4 and conc. HNO3, the species that initiates the reaction is :
1. NO2
2. NO+
3. NO2+
4. NO2-
Reduction of aromatic nitro compounds using Fe and HCl gives:
1. Aromatic oxime
2. Aromatic hydrocarbon
3. Aniline
4. Aromatic amide
The most reactive amine towards dilute hydrochloric acid is:
1. | 2. | ||
3. | 4. |
Acid anhydrides on reaction with primary amines give:
1. Amide
2. Imide
3. Secondary amine
4. Imine
The following reaction is named as:
\(\mathrm{Ar} \mathrm{N}_2^{+} \mathrm{Cl}^{-} \xrightarrow{\mathrm{Cu}/ \mathrm{HCl}} \mathrm{ArCl}+\mathrm{N}_2+\mathrm{CuCl}\)
1. Sandmeyer reaction
2. Gattermann reaction
3. Claisen reaction
4. Carbylamine reaction
Which of the following compound will not undergo azo coupling reaction with benzene diazonium chloride?
1. Aniline
2. Phenol
3. Anisole
4. Nitrobenzene
A compound among the following that does not undergo an azo coupling reaction with benzene diazonium chloride is:
1. Aniline
2. Phenol
3. Anisole
4. Nitrobenzene